Dioscorea Batatus
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''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending into temperate climates. It was named by the monk
Charles Plumier Charles Plumier (; 20 April 1646 – 20 November 1704) was a French botanist after whom the frangipani genus ''Plumeria'' is named. Plumier is considered one of the most important of the botanical explorers of his time. He made three botanizing ...
after the ancient Greek physician and botanist Dioscorides.


Description

Wild Yam (''Dioscorea'') is a vine that is invasive, deciduous, and herbaceous. This species is native to Asia, though, in the U.S., it is commonly found in Florida. They can grow over in length. Wild yams are an important crop, as they have been used to prevent menstrual cramps, stomach cramps, and general pain for centuries. During the 1950s scientists found that the roots of wild yams contained diosgenin which is a plant-based estrogen; diosgenin is hypothesized to aid in chemical defense against herbivores. This was used to create the first birth control pills during the 60s. In addition, some ''Dioscorea'' species are rich in nutrients and antioxidants. This is beneficial in rural areas where the plant is native because it enriches the diets of individuals who live in the area. These plants grow best near canopy gaps in woodlands and rainforests. ''Dioscorea'' uses vining behavior which is useful in tropical habitats because ''Dioscorea'' grow under canopies and need to latch onto different surfaces in order to grow upwards and acquire resources.


Cultivation and uses

Several species, known as yams, are important
agricultural Agriculture or farming is the practice of cultivating Plant, plants and livestock. Agriculture was the key development in the rise of Sedentism, sedentary human civilization, whereby farming of Domestication, domesticated species created food ...
crops in tropical regions, grown for their large tubers. Many of these are toxic when fresh, but can be detoxified and eaten, and are particularly important in parts of Africa, Asia, and Oceania. One class of toxins found in many species is
steroid A steroid is a biologically active organic compound with four rings arranged in a specific molecular configuration. Steroids have two principal biological functions: as important components of cell membranes that alter membrane fluidity; and a ...
al
saponin Saponins (Latin "sapon", soap + "-in", one of), also selectively referred to as triterpene glycosides, are bitter-tasting usually toxic plant-derived organic chemicals that have a foamy quality when agitated in water. They are widely distributed ...
s, which can be converted through a series of chemical reactions into steroid hormones for use in medicine and as contraceptives. The 1889 book "The Useful Native Plants of Australia" records that '' Dioscorea hastifolia'' is "One of the hardiest of the yams. The tubers are largely consumed by the local aborigines for food. (Mueller)."


Mechanism

Although the mechanism of ''Dioscorea'' vine behavior is unknown, it is likely that ''Dioscorea'' acts similarly to vines in terms of growth and movement behavior. Vines have a touch-sensitive component that allows them to locate and latch onto a supporting base. They use nearby plants, rocks, trees, and structures for physical support. Their touch receptors allow them to reach out and sense objects. Vines seek out these surfaces by sending out shoots to assess the area. This behavior is dependent on the species, but these shoots typically move in a clockwise or counterclockwise direction, induced by circadian rhythms (Digital time-lapse video). When the vine makes contact with an object, the tendril shoot will coil around the object; this is a reaction called thigmotropism.  This tendril can control the amount of tension and squeeze the object to stay attached to it and prevent falling. Leaf growth is typically postponed until the relative stem has secured support. When leaf growth is delayed, shoot growth is hastened. Some vines produce an adhesive on their stems that contain calcium to better latch onto structures. A gradient is produced and the calcium exits cells to spread over stems. Furthermore, ''Dioscorea'' is a twiner, this means that the plant undergoes circumnutation which is a helical movement that allows stems to wrap around objects. In order for this mechanism to take place, endodermal cells, plasmodesmata, the plasma membrane, epidermal cells, calcium, potassium, chloride, and proton pumps are required. The SCR gene is also crucial for twining to occur. To better understand the physiology of ''Dioscorea'' further research must be conducted as much has still not been discovered.


Experiment

In 2009, an experiment was conducted to address the mechanism of force generation in the twining plant, ''Dioscorea'' ''bulbifera''. To do this, the authors used a mechanical pole that measured the squeezing force of the twining vine. Plants were grown in a greenhouse setting, and once the shoots of the plants started "circumnutating," a pole was introduced to allow for twining around the object. Authors found that the amount of force being applied to the pole when the vine is twining is due to the stretching of the stipule. The forces of the bending and twisting motion of ''D. bulbifera'' did not generate a measurable force.  In addition, this experiment indicates that stipules are not the only driving force for tension in vines and that they contribute to increased squeezing force later in development. Overall, ''Dioscorea'' has a vining mechanism that allows it to obtain nutrients while living under a canopy; it has evolved to do this by seeking out surfaces to climb and latch onto. Vines, like ''Dioscorea'', have touch-sensitive components that allow them to specialize in this behavior.


Accepted species (613), subspecies, and varieties

The genus includes the following species and subspecies:


A

* '' Dioscorea abysmophila'' Maguire & Steyerm. * ''
Dioscorea abyssinica ''Dioscorea abyssinica'' is a herbaceous vine in the genus ''Dioscorea'' native to several Central African countries including Benin, Burkina Faso, Central African Republic, Eritrea, Ethiopia, Ghana, Ivory Coast, Liberia, Mali, Nigeria, Senegal, ...
'' Hochst. ex Kunth * ''
Dioscorea acanthogene ''Dioscorea acanthogene'' is a herbaceous vine in the genus ''Dioscorea''; it is native to Bolivia, west-central Brazil, Colombia, Paraguay, and Peru. A specimen collected in Bolivia in 2002 was obtained from a scrubby roadside in a dry, sparsely ...
'' Rusby * '' Dioscorea acerifolia'' Phil. * '' Dioscorea acuminata'' Baker * '' Dioscorea adenantha'' Uline * '' Dioscorea aesculifolia'' R.Knuth * '' Dioscorea aguilarii'' Standl. & Steyerm. * '' Dioscorea alata'' L. * '' Dioscorea alatipes'' Burkill & H.Perrier * ''
Dioscorea althaeoides ''Dioscorea althaeoides'' is a herbaceous vine in the genus '' Dioscorea'' which is indigenous to the Guizhou, Sichuan, and eastern Xizang provinces of China, in addition to the Yunnan area in Thailand. A formerly unknown acetylated spirostanol s ...
'' R.Knuth * '' Dioscorea altissima'' Lam. * '' Dioscorea amaranthoides'' C.Presl * '' Dioscorea amazonum'' Mart. ex Griseb. * ''
Dioscorea amazonum var. klugii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' (R.Knuth) Ayala * ''
Dioscorea amoena ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth * '' Dioscorea analalavensis'' Jum. & H.Perrier * '' Dioscorea ancachsensis'' R.Knuth * ''
Dioscorea andina ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Phil. * ''
Dioscorea andromedusae ''Dioscorea andromedusae'' is a herbaceous vine in the genus '' Dioscorea'' which is native to Peru, where the type specimen was collected from the hillside grottos of the San Andres.Téllez-Valdés, Oswaldo. (1996). Two New Species of Dioscorea ...
'' O.Téllez * ''
Dioscorea angustifolia ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Rusby * ''
Dioscorea anomala ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Griseb. * ''
Dioscorea antaly ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Jum. & H.Perrier * '' Dioscorea antucoana'' Uline ex R.Knuth * ''
Dioscorea arachidna ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' Prain & Burkill * ''
Dioscorea araucana ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Phil. * '' Dioscorea arcuatinervis'' Hochr. * '' Dioscorea argyrogyna'' Uline ex R.Knuth * ''
Dioscorea arifolia ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' C.Presl * '' Dioscorea aristolochiifolia'' Poepp. * ''
Dioscorea arnensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R. Knuth * '' Dioscorea asclepiadea'' Prain & Burkill * ''
Dioscorea aspera ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Humb. & Bonpl. ex Willd. * ''
Dioscorea aspersa ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Prain & Burkill * ''
Dioscorea asperula ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Pedralli * ''
Dioscorea asteriscus ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Burkill * ''
Dioscorea atrescens ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * ''
Dioscorea auriculata ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Poepp.


B

* '' Dioscorea bahiensis'' R.Knuth * '' Dioscorea bako'' Wilkin * ''
Dioscorea balcanica ''Dioscorea balcanica'' is a herbaceous perennial in the family Dioscoreaceae. Description Height 2–5 m. Flowers cup-shaped, arranged in racemes, producing loculicidal capsules. Taxonomy This species was named in 1914 by Nedeljko K ...
'' Košanin * ''
Dioscorea bancana ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Prain & Burkill * ''
Dioscorea banzhuana ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' S.J.Pei & C.T.Ting * ''
Dioscorea bartlettii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' C.V.Morton * '' Dioscorea basiclavicaulis'' Rizzini & A.Mattos * ''
Dioscorea baya ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' De Wild. * ''
Dioscorea beecheyi ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * ''
Dioscorea belophylla ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' (Prain) Voigt ex Haines * '' Dioscorea bemandry'' Jum. & H.Perrier * '' Dioscorea bemarivensis'' Jum. & H.Perrier * ''
Dioscorea benthamii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' Prain & Burkill * ''
Dioscorea berenicea ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' McVaugh * ''
Dioscorea bermejensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * ''
Dioscorea bernoulliana ''Dioscorea bernoulliana'' is a type of yam in the family Dioscoreaceae. It is native to Belize, Guatemala, Honduras, and Mexico. It usually grows in woodlands, forest A forest is an area of land dominated by trees. Hundreds of definit ...
'' Prain & Burkill * ''
Dioscorea besseriana ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Kunth * '' Dioscorea beyrichii'' R.Knuth * ''
Dioscorea bicolor ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Prain & Burkill * ''
Dioscorea biformifolia ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' S.J.Pei & C.T.Ting * '' Dioscorea biloba'' (Phil.) Caddick & Wilkin * '' Dioscorea biplicata'' R.Knuth * ''
Dioscorea birmanica ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Prain & Burkill * '' Dioscorea birschelii'' Harms ex R.Knuth * ''
Dioscorea blumei ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Prain & Burkill * ''
Dioscorea bolivarensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Steyerm. * ''
Dioscorea bonii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Prain & Burkill * ''
Dioscorea bosseri ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Haigh & Wilkin * '' Dioscorea brachybotrya'' Poepp. * '' Dioscorea brachystachya'' Phil. * ''
Dioscorea bradei ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * ''
Dioscorea brandisii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Prain & Burkill * ''
Dioscorea brevipetiolata ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Prain & Burkill * ''
Dioscorea bridgesii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Griseb. ex Kunth * '' Dioscorea brownii'' Schinz * '' Dioscorea bryoniifolia'' Poepp. * ''
Dioscorea buchananii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Benth. * ''
Dioscorea buckleyana ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Wilkin * ''
Dioscorea bulbifera ''Dioscorea bulbifera'' (commonly known as the air potato, air yam, bitter yam, cheeky yam, potato yam, aerial yam, and parsnip yam) is a species of true yam in the yam family, Dioscoreaceae. It is native to Africa, Asia and northern Australia. ...
'' L. * ''
Dioscorea bulbotricha ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Hand.-Mazz. * ''
Dioscorea burchellii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Baker * ''
Dioscorea burkilliana ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' J.Miège


C

* ''
Dioscorea cachipuertensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' Ayala * ''
Dioscorea calcicola ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Prain & Burkill * ''
Dioscorea caldasensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * ''
Dioscorea calderillensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth * '' Dioscorea callacatensis'' R.Knuth * ''
Dioscorea cambodiana ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' Prain & Burkill * ''
Dioscorea campanulata ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Uline ex R.Knuth * '' Dioscorea campestris'' Griseb. * ''
Dioscorea campos-portoi ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth * ''
Dioscorea carionis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Prain & Burkill * ''
Dioscorea carpomaculata ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' O.Téllez & B.G.Schub. * ''
Dioscorea carpomaculata var. cinerea ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' (Uline ex R.Knuth) O.Téllez & B.G.Schub. * ''
Dioscorea castilloniana ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Hauman * '' Dioscorea catharinensis'' R.Knuth * ''
Dioscorea caucasica ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Lipsky * ''
Dioscorea cavenensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' Lam. * '' Dioscorea cayennensis'' Lam. * '' Dioscorea cayennensis subsp. rotundata'' (Poir.) J.Miège; syn.: '' D. rotundata'' Poir. * ''
Dioscorea ceratandra ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Uline ex R.Knuth * ''
Dioscorea chacoensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth * '' Dioscorea chagllaensis'' R.Knuth * '' Dioscorea chancayensis'' R.Knuth * ''
Dioscorea chaponensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth * '' Dioscorea chiapasensis'' Matuda * ''
Dioscorea chimborazensis ''Dioscorea chimborazensis'' is a type of yam in the family Dioscoreaceae. It is endemic to Ecuador Ecuador ( ; ; Quechua: ''Ikwayur''; Shuar: ''Ecuador'' or ''Ekuatur''), officially the Republic of Ecuador ( es, República del Ecuador ...
'' R.Knuth * ''
Dioscorea chingii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Prain & Burkill * ''
Dioscorea choriandra ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Uline ex R.Knuth * ''
Dioscorea chouardii ''Dioscorea chouardii'' (synonym: ''Borderea chouardii'') is a herbaceous plant in the family Dioscoreaceae. It is endemic to a single cliff located in the Pyrenees of Aragon, Spain. History A previously unknown species, ''Dioscorea chouardii ...
'' Gaussen * ''
Dioscorea cienegensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth * '' Dioscorea cinnamomifolia'' Hook. * ''
Dioscorea cirrhosa ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Lour. * ''
Dioscorea cissophylla ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Phil. * ''
Dioscorea claessensii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' De Wild. * '' Dioscorea claussenii'' Uline ex R.Knuth * ''
Dioscorea claytonii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Ayala * '' Dioscorea cochleariapiculata'' De Wild. * ''
Dioscorea collettii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Hook.f. * ''
Dioscorea collettii var. hypoglauca ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' (Palib.) S.J.Pei & C.T.Ting * ''
Dioscorea communis ''Dioscorea communis'' or ''Tamus communis'' is a species of flowering plant in the yam family Dioscoreaceae and is commonly known as black bryony, lady's-seal or black bindweed. Description It is a climbing herbaceous plant growing to 2–4 m t ...
'' (L.) Caddick & Wilkin * '' Dioscorea commutata'' R.Knuth * ''
Dioscorea comorensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * '' Dioscorea composita'' Hemsl. * ''
Dioscorea contracta ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' R.Knuth * ''
Dioscorea convolvulacea ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Cham. & Schltdl. * '' Dioscorea convolvulacea subsp. grandifolia'' (Schltdl.) Uline ex R.Knuth * '' Dioscorea conzattii'' R.Knuth * ''
Dioscorea cordifolia ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Laness. * '' Dioscorea coreana'' (Prain & Burkill) R.Knuth * ''
Dioscorea coriacea ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Humb. & Bonpl. ex Willd. * ''
Dioscorea coripatenis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' J.F.Macbr. * ''
Dioscorea coronata ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Hauman * ''
Dioscorea cotinifolia ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Kunth * ''
Dioscorea craibiana ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Prain & Burkill * '' Dioscorea crateriflora'' R.Knuth * ''
Dioscorea crotalariifolia ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Uline * ''
Dioscorea cruzensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth * ''
Dioscorea cubensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth * '' Dioscorea cumingii'' Prain & Burkill * '' Dioscorea curitybensis'' R.Knuth * '' Dioscorea cuspidata'' Humb. & Bonpl. ex Willd. * ''
Dioscorea cuyabensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * ''
Dioscorea cyanisticta ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' J.D.Sm. * ''
Dioscorea cymosula ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Hemsl. * '' Dioscorea cyphocarpa'' C.B.Rob. ex Knuth


D

* ''
Dioscorea daunea ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' Prain & Burkill * '' Dioscorea davidsei'' O.Téllez * ''
Dioscorea de-mourae ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Uline ex R.Knuth * ''
Dioscorea debilis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Uline ex R.Knuth * ''
Dioscorea decaryana ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' H.Perrier * ''
Dioscorea decipiens ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Hook.f. * ''
Dioscorea decorticans ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' C.Presl * ''
Dioscorea deflexa ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Griseb. * '' Dioscorea delavayi'' Franch. * ''
Dioscorea delicata ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * '' Dioscorea deltoidea'' Wall. ex Griseb. * ''
Dioscorea dendrotricha ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Uline * ''
Dioscorea densiflora ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Hemsl. * ''
Dioscorea depauperata ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Prain & Burkill * '' Dioscorea diamantinensis'' R.Knuth * ''
Dioscorea dicranandra ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Donn.Sm. * ''
Dioscorea dielsii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth * ''
Dioscorea dissimulans ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Prain & Burkill * ''
Dioscorea divaricata ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Blanco * ''
Dioscorea diversifolia ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Griseb. * ''
Dioscorea dodecaneura ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Vell. * ''
Dioscorea dregeana ''Dioscorea dregeana'', the wild yam, is a perennial creeper that is native to the eastern parts of southern Africa. It is commonly used and traded as a traditional medicine, or muti. Range It is native to eastern South Africa and Eswatini. Des ...
'' (Kunth) T.Durand & Schinz * '' Dioscorea duchassaingii'' R.Knuth * ''
Dioscorea dugesii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' C.B.Rob. * ''
Dioscorea dumetorum ''Dioscorea dumetorum'', also known as the bitter yam, cluster yam, trifoliate yam, or three-leaved yam, is a species of flowering plant in the yam family, ''Dioscorea.'' It is native to sub-saharan Africa and especially common in the tropical r ...
'' (Kunth) Pax * ''
Dioscorea dumetosa ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Uline ex R.Knuth


E

* ''
Dioscorea ekmanii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * ''
Dioscorea elegans ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Ridl. ex Prain & Burkill * ''
Dioscorea elephantipes ''Dioscorea elephantipes'', the elephant's foot or Hottentot bread, is a species of flowering plant in the genus ''Dioscorea'' of the family Dioscoreaceae, native to the dry interior of South Africa. Description It is a deciduous climber. It ta ...
'' (L'Hér.) Engl. * '' Dioscorea entomophila'' Hauman * ''
Dioscorea epistephioides ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Taub. * '' Dioscorea escuintlensis'' Matuda * ''
Dioscorea esculenta ''Dioscorea esculenta'', commonly known as the lesser yam, is a yam species native to Island Southeast Asia and introduced to Near Oceania and East Africa by early Austronesian voyagers. It is grown for their edible tubers, though it has small ...
'' (Lour.) Burkill * '' Dioscorea esquirolii'' Prain & Burkill * ''
Dioscorea exalata ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' C.T.Ting & M.C.Chang


F

* ''
Dioscorea fandra ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' H.Perrier * '' Dioscorea fasciculocongesta'' (Sosa & B.G.Schub.) O.Téllez * '' Dioscorea fastigiata'' Gay * ''
Dioscorea fendleri ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth * ''
Dioscorea ferreyrae ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Ayala * ''
Dioscorea filiformis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Blume * ''
Dioscorea flabellifolia ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Prain & Burkill * ''
Dioscorea flaccida ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * ''
Dioscorea floribunda ''Dioscorea floribunda'', the medicinal yam or mule's-hoof, is a species of flowering plant in the family Dioscoreaceae. It is found from central Mexico to northern Central America. It is grown commercially for its diosgenin Diosgenin, a phytos ...
'' M.Martens & Galeotti * ''
Dioscorea floridana ''Dioscorea floridana'', the Florida yam, is a plant species native to Florida, Alabama, Georgia (U.S. state), Georgia and South Carolina. It grows in wet and sandy places at low elevations. ''Dioscorea floridana'' is a perennial vine twining ov ...
'' Bartlett * ''
Dioscorea fodinarum ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Kunth * '' Dioscorea fordii'' Prain & Burkill * '' Dioscorea formosana'' R.Knuth * ''
Dioscorea fractiflexa ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth * '' Dioscorea fuliginosa'' R.Knuth * ''
Dioscorea furcata ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' Griseb. * ''
Dioscorea futschauensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Uline ex R.Knuth


G

* ''
Dioscorea galeottiana ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' Kunth * '' Dioscorea galiiflora'' R.Knuth * ''
Dioscorea gallegosi ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Matuda * '' Dioscorea garrettii'' Prain & Burkill * ''
Dioscorea gaumeri ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth * ''
Dioscorea gentryi ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' O.Téllez * ''
Dioscorea gillettii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Milne-Redh. * ''
Dioscorea glabra ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Roxb. * '' Dioscorea glandulosa'' (Griseb.) Klotzsch ex Kunth * '' Dioscorea glandulosa var. calcensis'' (R.Knuth) Ayala * ''
Dioscorea glomerulata ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' Hauman * ''
Dioscorea gomez-pompae ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' O.Téllez * ''
Dioscorea gracilicaulis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' R.Knuth * '' Dioscorea gracilipes'' Prain & Burkill * ''
Dioscorea gracilis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Hook. ex Poepp. * ''
Dioscorea gracillima ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Miq. * '' Dioscorea grandiflora'' Mart. ex Griseb. * ''
Dioscorea grandis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth * '' Dioscorea grata'' Prain & Burkill * '' Dioscorea gribinguiensis'' Baudon * ''
Dioscorea grisebachii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Kunth * '' Dioscorea guerrerensis'' R.Knuth * ''
Dioscorea guianensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth


H

* ''
Dioscorea haenkeana ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' C.Presl * ''
Dioscorea hamiltonii ''Dioscorea hamiltonii'' is a species of '' Dioscorea'' native to southern China, Taiwan, northern Indochina (Thailand, Vietnam, Myanmar) and the Himalayas (Nepal, Sikkim, Bhutan, Assam).Wilkin, P. & Thapyai, C. (2009). Flora of Thailand 10(1): ...
'' Hook.f. * ''
Dioscorea hassleriana ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Chodat * ''
Dioscorea hastata ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Mill. * '' Dioscorea hastatissima'' Rusby * '' Dioscorea hastifolia'' Nees * '' Dioscorea hastiformis'' R.Knuth * ''
Dioscorea haumanii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Xifreda * ''
Dioscorea havilandii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' Prain & Burkill * '' Dioscorea hebridensis'' R.Knuth * ''
Dioscorea hemicrypta ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Burkill * '' Dioscorea hemsleyi'' Prain & Burkill * ''
Dioscorea heptaneura ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' Vell. * ''
Dioscorea herbert-smithii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Rusby * ''
Dioscorea herzogii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * ''
Dioscorea heteropoda ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Baker * ''
Dioscorea hexagona ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Baker * ''
Dioscorea hieronymi ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Uline ex R.Knuth * '' Dioscorea hintonii'' R.Knuth * ''
Dioscorea hirtiflora ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Benth. * '' Dioscorea hirtiflora subsp. orientalis'' Milne-Redh. * ''
Dioscorea hispida ''Dioscorea hispida'', also known as the Indian three-leaved yam, (Tagalog: nami) is a species of yam in the genus ''Dioscorea'', native to South and Southeast Asia. Known to be poisonous when fresh, careful processing is required to render it e ...
'' Dennst. * '' Dioscorea holmioidea'' Maury * '' Dioscorea hombuka'' H.Perrier * '' Dioscorea hondurensis'' R.Knuth * '' Dioscorea howardiana'' O.Téllez, B.G.Schub. & Geeta * ''
Dioscorea humifusa ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Poepp. * ''
Dioscorea humilis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Bertero ex Colla * ''
Dioscorea humilis subsp. polyanthes ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' (F.Phil.) Viruel, Segarra & Villar * ''
Dioscorea hunzikeri ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Xifreda


I

* '' Dioscorea igualamontana'' Matuda * '' Dioscorea incayensis'' R.Knuth * '' Dioscorea inopinata'' Prain & Burkill * ''
Dioscorea insignis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' C.V.Morton & B.G.Schub. * '' Dioscorea intermedia'' Thwaites * '' Dioscorea ionophylla'' Uline ex R.Knuth * ''
Dioscorea iquitosensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth * ''
Dioscorea irupanensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth * ''
Dioscorea itapirensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth * ''
Dioscorea itatiensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth


J

* ''
Dioscorea jaliscana ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' S.Watson * ''
Dioscorea jamesonii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * '' Dioscorea japonica'' Thunb. - ''Shan yao'' in Chinese () * '' Dioscorea javariensis'' Ayala * ''
Dioscorea juxtlahuacensis ''Dioscorea juxtlahuacensis'' is a plant species endemic to a small area in the State of Oaxaca in southern Mexico. It is known only from the Santiago Juztlahuaca District in the Sierra Madre del Sur mountains, where it grows in deciduous oak- j ...
'' (O.Téllez & Dávila) Caddick & Wilkin


K

* '' Dioscorea kalkapershadii'' Prain & Burkill * ''
Dioscorea kamoonensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Kunth * ''
Dioscorea keduensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Burkill ex Backer * ''
Dioscorea kerrii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Prain & Burkill * '' Dioscorea killipii'' R.Knuth * ''
Dioscorea kimiae ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Wilkin * ''
Dioscorea kingii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * '' Dioscorea kituiensis'' Wilkin & Muasya * ''
Dioscorea kjellbergii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * ''
Dioscorea knuthiana ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' De Wild. * ''
Dioscorea koepperi ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Standl. * ''
Dioscorea koyamae ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Jayas. * ''
Dioscorea kratica ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' Prain & Burkill * '' Dioscorea kunthiana'' Uline * ''
Dioscorea kuntzei ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Uline ex Kuntze


L

* ''
Dioscorea lacerdaei ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Griseb. * ''
Dioscorea laevis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Uline * '' Dioscorea lamprocaula'' Prain & Burkill * ''
Dioscorea lanata ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Bail * '' Dioscorea larecajensis'' Uline ex R.Knuth * '' Dioscorea laurifolia'' Wall. ex Hook.f. * '' Dioscorea lawrancei'' R.Knuth * ''
Dioscorea laxiflora ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Mart. ex Griseb. * ''
Dioscorea lehmannii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Uline * ''
Dioscorea lepcharum ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Prain & Burkill * ''
Dioscorea lepida ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' C.V.Morton * ''
Dioscorea leptobotrys ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Uline ex R.Knuth * ''
Dioscorea liebmannii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' Uline * '' Dioscorea lijiangensis'' C.L.Long & H.Li * '' Dioscorea linearicordata'' Prain & Burkill * ''
Dioscorea lisae ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Dorr & Stergios * ''
Dioscorea listeri ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Prain & Burkill * ''
Dioscorea litoralis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Phil. * ''
Dioscorea loefgrenii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * ''
Dioscorea loheri ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Prain & Burkill * '' Dioscorea longicuspis'' R.Knuth * ''
Dioscorea longipes ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Phil. * ''
Dioscorea longirhiza ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Caddick & Wilkin * ''
Dioscorea longituba ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Uline * ''
Dioscorea lundii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Uline ex R.Knuth * ''
Dioscorea luzonensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Schauer


M

* ''
Dioscorea macbrideana ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth * ''
Dioscorea maciba ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Jum. & H.Perrier * ''
Dioscorea macrantha ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Uline ex R.Knuth * ''
Dioscorea macrothyrsa ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' Uline * ''
Dioscorea macvaughii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' B.G.Schub. * ''
Dioscorea madecassa ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' H.Perrier * ''
Dioscorea madiunensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Prain & Burkill * '' Dioscorea maianthemoides'' Uline ex R.Knuth * ''
Dioscorea mamillata ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' Jum. & H.Perrier * ''
Dioscorea mandonii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Rusby * ''
Dioscorea mangenotiana ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' J.Miège * '' Dioscorea mantigueirensis'' R.Knuth * ''
Dioscorea margarethia ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' G.M.Barroso, E.F.Guim. & Sucre * ''
Dioscorea marginata ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Griseb. * ''
Dioscorea martensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth * ''
Dioscorea martiana ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Griseb. * '' Dioscorea martini'' Prain & Burkill * ''
Dioscorea matagalpensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Uline * '' Dioscorea matudae'' O.Téllez & B.G.Schub. * ''
Dioscorea mayottensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' Wilkin * '' Dioscorea megacarpa'' Gleason * '' Dioscorea megalantha'' Griseb. * ''
Dioscorea melanophyma ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Prain & Burkill * '' Dioscorea melastomatifolia'' Uline ex Prain * ''
Dioscorea membranacea ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Pierre ex Prain & Burkill * '' Dioscorea menglaensis'' H.Li * ''
Dioscorea meridensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Kunth * ''
Dioscorea merrillii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Prain & Burkill * ''
Dioscorea mesoamericana ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' O.Téllez & Mart.-Rodr. * '' Dioscorea mexicana'' Scheidw. * ''
Dioscorea microbotrya ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Griseb. * '' Dioscorea microcephala'' Uline * ''
Dioscorea microura ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * ''
Dioscorea mindanaensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth * ''
Dioscorea minima ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' C.B.Rob. & Seaton * ''
Dioscorea minutiflora ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Engl. * ''
Dioscorea mitis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' C.V.Morton * '' Dioscorea mitoensis'' R.Knuth * '' Dioscorea modesta'' Phil. * ''
Dioscorea mollis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Kunth * ''
Dioscorea monadelpha ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' (Kunth) Griseb. * '' Dioscorea × monandra'' Hauman * '' Dioscorea morelosana'' (Uline) Matuda * ''
Dioscorea moritziana ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' (Kunth) R.Knuth * ''
Dioscorea mosqueirensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * '' Dioscorea moultonii'' Prain & Burkill * '' Dioscorea moyobambensis'' R.Knuth * ''
Dioscorea mucronata ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Uline ex R.Knuth * ''
Dioscorea multiflora ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Mart. ex Griseb. * ''
Dioscorea multiloba ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Kunth * ''
Dioscorea multinervis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Benth. * ''
Dioscorea mundii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Baker


N

* ''
Dioscorea nako ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' H.Perrier * '' Dioscorea namorokensis'' Wilkin * ''
Dioscorea nana ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Poepp. * ''
Dioscorea nanlaensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' H.Li * ''
Dioscorea natalensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * '' Dioscorea natalia'' Hammel * ''
Dioscorea neblinensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Maguire & Steyerm. * '' Dioscorea nelsonii'' Uline ex R.Knuth * ''
Dioscorea nematodes ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Uline ex R.Knuth * '' Dioscorea nervata'' R.Knuth * ''
Dioscorea nervosa ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Phil. * '' Dioscorea nicolasensis'' R.Knuth * ''
Dioscorea nieuwenhuisii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Prain & Burkill * ''
Dioscorea nipensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.A.Howard * ''
Dioscorea nipponica ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Makino * '' Dioscorea nitens'' Prain & Burkill * ''
Dioscorea nuda ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * ''
Dioscorea nummularia ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Lam. * ''
Dioscorea nutans ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth


O

* ''
Dioscorea oaxacensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Uline * ''
Dioscorea obcuneata ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Hook.f. * ''
Dioscorea oblonga ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Gleason * ''
Dioscorea oblongifolia ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Rusby * '' Dioscorea obtusifolia'' Hook. & Arn. * ''
Dioscorea olfersiana ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Klotzsch ex Griseb. * '' Dioscorea oligophylla'' Phil. * ''
Dioscorea omiltemensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' O.Téllez * ''
Dioscorea opaca ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * '' Dioscorea oppositiflora'' Griseb. * ''
Dioscorea oppositifolia ''Dioscorea oppositifolia'' is a type of yam (''Dioscorea'') native to Myanmar (Burma) and to the Indian Subcontinent (India, Sri Lanka, Bangladesh). Taxonomy The plant previously called ''D. opposita'' is now considered to be the same specie ...
'' L. - ''Shan yao'' in Chinese () * ''
Dioscorea orangeana ''Dioscorea orangeana'', is a tuberous vining flowering plant in the genus ''Dioscorea'', endemic the Forêt d’Orangea near Antsiranana in Madagascar, from which it derives its name. The tuber is possibly edible, and unlike most other ''Dios ...
'' Wilkin * ''
Dioscorea orbiculata ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Hook.f. * ''
Dioscorea orbiculata var. tenuifolia ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' (Ridl.) Thapyai * ''
Dioscorea oreodoxa ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' B.G.Schub. * '' Dioscorea organensis'' R.Knuth * ''
Dioscorea orientalis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' (J.Thiébaut) Caddick & Wilkin * ''
Dioscorea orizabensis ''Dioscorea orizabensis'' is a species of yam in the family Dioscoreaceae. It is native to the Jalisco and Veracruz states of Mexico. The plant is a climbing tuberous geophyte A storage organ is a part of a plant specifically modified for sto ...
'' Uline * ''
Dioscorea orthogoneura ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Uline ex Hochr. * ''
Dioscorea oryzetorum ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Prain & Burkill * '' Dioscorea ovalifolia'' R.Knuth * ''
Dioscorea ovata ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Vell. * ''
Dioscorea ovinala ''Dioscorea ovinala'' is a species of yam in the family Dioscoreaceae. It is endemic to Madagascar and grows mostly in dry deciduous forests. Uses ''Dioscorea ovinala'' is important to the Malagasy people as food and medicine. This species is ...
'' Baker


P

* ''
Dioscorea palawana ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Prain & Burkill * ''
Dioscorea paleata ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Burkill * ''
Dioscorea pallens ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Schltdl. * '' Dioscorea pallidinervia'' R.Knuth * ''
Dioscorea palmeri ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * '' Dioscorea panamensis'' R.Knuth * ''
Dioscorea panthaica ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Prain & Burkill * '' Dioscorea pantojensis'' R.Knuth * ''
Dioscorea paradoxa ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Prain & Burkill * ''
Dioscorea pavonii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Uline ex R.Knuth * ''
Dioscorea pedicellata ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Phil. * '' Dioscorea pencana'' Phil. * '' Dioscorea pendula'' Poepp. ex Kunth * ''
Dioscorea pentaphylla ''Dioscorea pentaphylla'' is a species of flowering plant in the yam family known by the common name fiveleaf yam. It is native to southern and eastern Asia (China, India, Indochina, Indonesia, Philippines, etc.) as well as New Guinea and north ...
'' L. * '' Dioscorea peperoides'' Prain & Burkill * ''
Dioscorea perdicum ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Taub. * ''
Dioscorea perenensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth * ''
Dioscorea perpilosa ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' H.Perrier * '' Dioscorea petelotii'' Prain & Burkill * ''
Dioscorea philippiana ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Uline ex R.Knuth * '' Dioscorea piauhyensis'' R.Knuth * '' Dioscorea pierrei'' Prain & Burkill * ''
Dioscorea pilcomayensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Hauman * '' Dioscorea pilgeriana'' R.Knuth * ''
Dioscorea pilosiuscula ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' Bertero ex Spreng. * ''
Dioscorea pinedensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth * '' Dioscorea piperifolia'' Humb. & Bonpl. ex Willd. * ''
Dioscorea piscatorum ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Prain & Burkill * ''
Dioscorea pittieri ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * ''
Dioscorea planistipulosa ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Uline ex R.Knuth * '' Dioscorea plantaginifolia'' R.Knuth * ''
Dioscorea platycarpa ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Prain & Burkill * ''
Dioscorea platycolpota ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Uline ex B.L.Rob. * ''
Dioscorea plumifera ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' C.B.Rob. * '' Dioscorea pohlii'' Griseb. * '' Dioscorea pohlii var. luschnathiana'' (Kunth) Uline ex R.Knuth * ''
Dioscorea poilanei ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Prain & Burkill * ''
Dioscorea polyclados ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Hook.f. * ''
Dioscorea polygonoides ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Humb. & Bonpl. ex Willd. * '' Dioscorea polystachya'' Turcz. (also: ''Dioscorea batatas Decne'') * ''
Dioscorea pomeroonensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * ''
Dioscorea potarensis ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth * '' Dioscorea praehensilis'' Benth. * ''
Dioscorea prainiana ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * '' Dioscorea prazeri'' Prain & Burkill * '' Dioscorea preslii'' Steud. * ''
Dioscorea preussii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Pax * '' Dioscorea preussii subsp. hylophila'' (Harms) Wilkin * '' Dioscorea pringlei'' C.B.Rob. * '' Dioscorea proteiformis'' H.Perrier * ''
Dioscorea psammophila ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * '' Dioscorea pseudomacrocapsa'' G.M.Barroso, E.F.Guim. & Sucre * ''
Dioscorea pseudorajanioides ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth * '' Dioscorea pseudotomentosa'' Prain & Burkill * '' Dioscorea pteropoda'' Boivin ex H.Perrier * '' Dioscorea pubera'' Blume * ''
Dioscorea pubescens ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' Poir. * ''
Dioscorea pumicicola ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Uline * ''
Dioscorea pumilio ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species exten ...
'' Griseb. * ''
Dioscorea puncticulata ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' R.Knuth * ''
Dioscorea purdiei ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' R.Knuth * '' Dioscorea putisensis'' R.Knuth * '' Dioscorea putumayensis'' R.Knuth * ''
Dioscorea pynaertii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extendin ...
'' De Wild. * ''
Dioscorea pyrenaica ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Bubani & Bordère ex Gren. * '' Dioscorea pyrifolia'' Kunth


Q

* ''
Dioscorea quartiniana ''Dioscorea quartiniana'' is a climbing tuber geophyte in the family Dioscoreaceae. It is native to Benin, Botswana, Burundi, Chad, Congo, Côte d'Ivoire (Ivory Coast), Eritrea, Ethiopia, Gambia, Ghana, Kenya, Madagascar, Malawi, Mozambique, Nami ...
'' A.Rich. * ''
Dioscorea quaternata ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' J.F. Gmel. * '' Dioscorea quinquelobata'' Thunb. * '' Dioscorea quispicanchensis'' R.Knuth


R

* ''
Dioscorea racemosa ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' (Klotzsch) Uline * ''
Dioscorea regnellii ''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The vast majority of the species are tropical, with only a few species extending ...
'' Uline ex R.Knuth * ''Dioscorea remota'' C.V.Morton * ''Dioscorea remotiflora'' Kunth * ''Dioscorea reticulata'' Gay * ''Dioscorea retusa'' Mast. * ''Dioscorea reversiflora'' Uline * ''Dioscorea ridleyi'' Prain & Burkill * ''Dioscorea riedelii'' R.Knuth * ''Dioscorea rigida'' R.Knuth * ''Dioscorea rimbachii'' R.Knuth * ''Dioscorea rockii'' Prain & Burkill * ''Dioscorea rosei'' R.Knuth * ''Dioscorea rumicoides'' Griseb. * ''Dioscorea rupicola'' Kunth * ''Dioscorea rusbyi'' Uline


S

* ''Dioscorea sabarensis'' R.Knuth * ''Dioscorea sagittata'' Poir. * ''Dioscorea sagittifolia'' Pax * ''Dioscorea sagittifolia var. lecardii'' (De Wild.) Nkounkou * ''Dioscorea salicifolia'' Blume * ''Dioscorea salvadorensis'' Standl. * ''Dioscorea sambiranensis'' R.Knuth * ''Dioscorea sanchez-colini'' Matuda * ''Dioscorea sandiensis'' R.Knuth * ''Dioscorea sandwithii'' B.G.Schub. * ''Dioscorea sanpaulensis'' R.Knuth * ''Dioscorea sansibarensis'' Pax * ''Dioscorea santanderensis'' R.Knuth * ''Dioscorea santosensis'' R.Knuth * ''Dioscorea sarasinii'' Uline ex R.Knuth * ''Dioscorea saxatilis'' Poepp. * ''Dioscorea scabra'' Humb. & Bonpl. ex Willd. * ''Dioscorea schimperiana'' Hochst. ex Kunth * ''Dioscorea schubertiae'' Ayala * ''Dioscorea schunkei'' Ayala & T.Clayton * ''Dioscorea schwackei'' Uline ex R.Knuth * ''Dioscorea scortechinii'' Prain & Burkill * ''Dioscorea secunda'' R.Knuth * ''Dioscorea sellowiana'' Uline ex R.Knuth * ''Dioscorea semperflorens'' Uline * ''Dioscorea septemloba'' Thunb. * ''Dioscorea septemnervis'' Vell. * ''Dioscorea sericea'' R.Knuth * ''Dioscorea seriflora'' Jum. & H.Perrier * ''Dioscorea serpenticola'' Hoque & P.K.Mukh. * ''Dioscorea sessiliflora'' McVaugh * ''Dioscorea sexrimata'' Burkill * ''Dioscorea simulans'' Prain & Burkill * ''Dioscorea sincorensis'' R.Knuth * ''Dioscorea sinoparviflora'' C.T.Ting, M.G.Gilbert & Turland * ''Dioscorea sinuata'' Vell. * ''Dioscorea sitamiana'' Prain & Burkill * ''Dioscorea skottsbergii'' R.Knuth * ''Dioscorea smilacifolia'' De Wild. & T.Durand * ''Dioscorea sonlaensis'' R.Knuth * ''Dioscorea sororopana'' Steyerm. * ''Dioscorea soso'' Jum. & H.Perrier * ''Dioscorea soso var. trichopoda'' (Jum. & H.Perrier) Burkill & H.Perrier * ''Dioscorea spectabilis'' R.Knuth * ''Dioscorea spicata'' Roth * ''Dioscorea spiculiflora'' Hemsl. * ''Dioscorea spiculoides'' Matuda * ''Dioscorea spongiosa'' J.Q.Xi, M.Mizuno & W.L.Zhao * ''Dioscorea sprucei'' Uline ex R.Knuth * ''Dioscorea standleyi'' C.V.Morton * ''Dioscorea stegelmanniana'' R.Knuth * ''Dioscorea stellaris'' R.Knuth * ''Dioscorea stemonoides'' Prain & Burkill * ''Dioscorea stenocolpus'' Phil. * ''Dioscorea stenomeriflora'' Prain & Burkill * ''Dioscorea stenopetala'' Hauman * ''Dioscorea stenophylla'' Uline * ''Dioscorea sterilis'' O.Weber & Wilkin * ''Dioscorea stipulosa'' Uline ex R.Knuth * ''Dioscorea subcalva'' Prain & Burkill * ''Dioscorea subhastata'' Vell. * ''Dioscorea sublignosa'' R.Knuth * ''Dioscorea submigra'' R.Knuth * ''Dioscorea subtomentosa'' Miranda * ''Dioscorea sumatrana'' Prain & Burkill * ''Dioscorea sumiderensis'' B.G.Schub. & O.Téllez * ''Dioscorea suratensis'' R.Knuth * ''Dioscorea sylvatica'' Eckl. * ''Dioscorea synandra'' Uline * ''Dioscorea syringifolia'' (Kunth) Kunth & R.H.Schomb. ex R.Knuth


T

* ''Dioscorea tabatae'' Hatus. ex Yamashita & M.N.Tamura * ''Dioscorea tacanensis'' Lundell * ''Dioscorea tamarisciflora'' Prain & Burkill * ''Dioscorea tamoidea'' Griseb. * ''Dioscorea tamshiyacuensis'' Ayala * ''Dioscorea tancitarensis'' Matuda * ''Dioscorea tarijensis'' R.Knuth * ''Dioscorea tarmensis'' R.Knuth * ''Dioscorea tauriglossum'' R.Knuth * ''Dioscorea tayacajensis'' R.Knuth * ''Dioscorea temascaltepecensis'' R.Knuth * ''Dioscorea tenebrosa'' C.V.Morton * ''Dioscorea tenella'' Phil. * ''Dioscorea tentaculigera'' Prain & Burkill * ''Dioscorea tenuipes'' Franch. & Sav. * ''Dioscorea tenuiphyllum'' R.Knuth * ''Dioscorea tenuis'' R.Knuth * ''Dioscorea tequendamensis'' R.Knuth * ''Dioscorea ternata'' Griseb. * ''Dioscorea therezopolensis'' Uline ex R.Knuth * ''Dioscorea togoensis'' R.Knuth * ''Dioscorea tokoro'' Makino ex Miyabe * ''Dioscorea toldosensis'' R.Knuth * ''Dioscorea tomentosa'' J.Koenig ex Spreng. * ''Dioscorea torticaulis'' R.Knuth * ''Dioscorea trachyandra'' Griseb. * ''Dioscorea trachycarpa'' Kunth * ''Dioscorea traillii'' R.Knuth * ''Dioscorea transversa'' R.Br. * ''Dioscorea triandria'' Sessé & Moc. * ''Dioscorea trichantha'' Baker * ''Dioscorea trichanthera'' Gleason * ''Dioscorea trifida'' L.f. * ''Dioscorea trifoliata'' Kunth * ''Dioscorea trifurcata'' Hauman * ''Dioscorea trilinguis'' Griseb. * ''Dioscorea trimenii'' Prain & Burkill * ''Dioscorea trinervia'' Roxb. ex Prain & Burkill * ''Dioscorea trisecta'' Griseb. * ''Dioscorea trollii'' R.Knuth * ''Dioscorea truncata'' Miq. * ''Dioscorea tsaratananensis'' H.Perrier * ''Dioscorea tubiperianthia'' Matuda * ''Dioscorea tubuliflora'' Uline ex R.Knuth * ''Dioscorea tubulosa'' Griseb.


U

* ''Dioscorea uliginosa'' Phil. * ''Dioscorea ulinei'' Greenm. ex R.Knuth * ''Dioscorea undatiloba'' Baker * ''Dioscorea urceolata'' Uline * ''Dioscorea urophylla'' Hemsl. * ''Dioscorea uruapanensis'' Matuda


V

* ''Dioscorea valdiviensis'' R.Knuth * ''Dioscorea vanvuurenii'' Prain & Burkill * ''Dioscorea variifolia'' Bertero * ''Dioscorea velutipes'' Prain & Burkill * ''Dioscorea vexans'' Prain & Burkill * ''Dioscorea vilis'' Kunth * ''Dioscorea villosa'' L. * ''Dioscorea volckmannii'' Phil.


W

* ''Dioscorea wallichii'' Hook.f. * ''Dioscorea warburgiana'' Uline ex Prain & Burkill * ''Dioscorea warmingii'' R.Knuth * ''Dioscorea wattii'' Prain & Burkill * ''Dioscorea weberbaueri'' R.Knuth * ''Dioscorea widgrenii'' R.Knuth * ''Dioscorea wightii'' Hook.f. * ''Dioscorea wittiana'' R.Knuth * ''Dioscorea wrightii'' Uline ex R.Knuth


X

* ''Dioscorea xizangensis'' C.T.Ting


Y

* ''Dioscorea yunnanensis'' Prain & Burkill


Z

* ''Dioscorea zingiberensis'' C.H.Wright The closely related genus ''Tamus'' is included in ''Dioscorea'' by some sources,, search for "Tamus" but is maintained as distinct by others., p. 854 For ''Dioscorea communis'' (L.) Caddick & Wilkin, see ''Tamus communis''.


See also

* Yam (vegetable), Yams * Mexican barbasco trade


References


Bibliography


Flora Europaea: ''Dioscorea''

Flora of Pakistan: ''Dioscorea''
* Schols, P. 2004. Contributions to the palynology and phylogeny of Dioscorea (Dioscoreaceae). PhD thesis KU Leuven. {{DEFAULTSORT:Dioscorea Dioscorea, Dioscoreales genera Tubers Dioecious plants