''Dioscorea'' is a genus of over 600 species of
flowering plants in the family
Dioscoreaceae, 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
''Dioscorea analalavensis'' is a herbaceous vine in the genus ''Dioscorea
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The ...
''
Jum. & H.Perrier
* ''
Dioscorea ancachsensis
''Dioscorea ancachsensis'' is a herbaceous plant in the genus ''Dioscorea
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. The ...
''
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
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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
* ''
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
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 ...
''
Hochr.
* ''
Dioscorea argyrogyna
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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
* ''
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
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 ...
''
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
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 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
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 bako
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 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
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 ...
''
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
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 bemarivensis
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 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
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 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
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 ...
''
(Phil.) Caddick & Wilkin
* ''
Dioscorea biplicata
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 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
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 ...
''
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
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 ...
''
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
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 ...
''
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
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 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
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 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
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 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
''Dioscorea cayenensis'' is a species of yam in the genus ''Dioscorea'' that is a widely consumed West African domesticated crop. ''Dioscorea rotundata
''Dioscorea cayenensis'' subsp. ''rotundata'', commonly known as the white yam, West Afric ...
''
Lam.
* ''
Dioscorea cayennensis subsp. rotundata
''Dioscorea cayenensis'' subsp. ''rotundata'', commonly known as the white yam, West African yam, Guinea yam, or white ñame, is a subspecies of yam native to Africa. It is one of the most important cultivated yams. Kokoro is one of its most imp ...
''
(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
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 chancayensis
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 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
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 ...
''
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
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 ...
''
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
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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
* ''
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
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 ...
''
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
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 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
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 ...
''
(Schltdl.) Uline ex R.Knuth
* ''
Dioscorea conzattii
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 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
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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) 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
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 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
''Dioscorea'' is a genus of over 600 species of flowering plants in the family Dioscoreaceae, 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 curitybensis''
R.Knuth
* ''Dioscorea cuspidata''
Humb. & Bonpl. ex Willd.
* ''Dioscorea cuyabensis''
R.Knuth
* ''Dioscorea cyanisticta''
J.D.Sm.
* ''Dioscorea cymosula''
Hemsl.
* ''Dioscorea cyphocarpa''
C.B.Rob. ex Knuth
D
* ''Dioscorea daunea''
Prain & Burkill
* ''Dioscorea davidsei''
O.Téllez
* ''Dioscorea de-mourae''
Uline ex R.Knuth
* ''Dioscorea debilis''
Uline ex R.Knuth
* ''Dioscorea decaryana''
H.Perrier
* ''Dioscorea decipiens''
Hook.f.
* ''Dioscorea decorticans''
C.Presl
* ''Dioscorea deflexa''
Griseb.
* ''Dioscorea delavayi''
Franch.
* ''Dioscorea delicata''
R.Knuth
* ''Dioscorea deltoidea''
Wall. ex Griseb.
* ''Dioscorea dendrotricha''
Uline
* ''Dioscorea densiflora''
Hemsl.
* ''Dioscorea depauperata''
Prain & Burkill
* ''Dioscorea diamantinensis''
R.Knuth
* ''Dioscorea dicranandra''
Donn.Sm.
* ''Dioscorea dielsii''
R.Knuth
* ''Dioscorea dissimulans''
Prain & Burkill
* ''Dioscorea divaricata''
Blanco
* ''Dioscorea diversifolia''
Griseb.
* ''Dioscorea dodecaneura''
Vell.
* ''Dioscorea dregeana''
(Kunth) T.Durand & Schinz
* ''Dioscorea duchassaingii''
R.Knuth
* ''Dioscorea dugesii''
C.B.Rob.
* ''Dioscorea dumetorum''
(Kunth) Pax
* ''Dioscorea dumetosa''
Uline ex R.Knuth
E
* ''Dioscorea ekmanii''
R.Knuth
* ''Dioscorea elegans''
Ridl. ex Prain & Burkill
* ''Dioscorea elephantipes''
(L'Hér.) Engl.
* ''Dioscorea entomophila''
Hauman
* ''Dioscorea epistephioides''
Taub.
* ''Dioscorea escuintlensis''
Matuda
* ''Dioscorea esculenta''
(Lour.) Burkill
* ''Dioscorea esquirolii''
Prain & Burkill
* ''Dioscorea exalata''
C.T.Ting & M.C.Chang
F
* ''Dioscorea fandra''
H.Perrier
* ''Dioscorea fasciculocongesta''
(Sosa & B.G.Schub.) O.Téllez
* ''Dioscorea fastigiata''
Gay
* ''Dioscorea fendleri''
R.Knuth
* ''Dioscorea ferreyrae''
Ayala
* ''Dioscorea filiformis''
Blume
* ''Dioscorea flabellifolia''
Prain & Burkill
* ''Dioscorea flaccida''
R.Knuth
* ''Dioscorea floribunda''
M.Martens & Galeotti
* ''Dioscorea floridana''
Bartlett
* ''Dioscorea fodinarum''
Kunth
* ''Dioscorea fordii''
Prain & Burkill
* ''Dioscorea formosana''
R.Knuth
* ''Dioscorea fractiflexa''
R.Knuth
* ''Dioscorea fuliginosa''
R.Knuth
* ''Dioscorea furcata''
Griseb.
* ''Dioscorea futschauensis''
Uline ex R.Knuth
G
* ''Dioscorea galeottiana''
Kunth
* ''Dioscorea galiiflora''
R.Knuth
* ''Dioscorea gallegosi''
Matuda
* ''Dioscorea garrettii''
Prain & Burkill
* ''Dioscorea gaumeri''
R.Knuth
* ''Dioscorea gentryi''
O.Téllez
* ''Dioscorea gillettii''
Milne-Redh.
* ''Dioscorea glabra''
Roxb.
* ''Dioscorea glandulosa''
(Griseb.) Klotzsch ex Kunth
* ''Dioscorea glandulosa var. calcensis''
(R.Knuth) Ayala
* ''Dioscorea glomerulata''
Hauman
* ''Dioscorea gomez-pompae''
O.Téllez
* ''Dioscorea gracilicaulis''
R.Knuth
* ''Dioscorea gracilipes''
Prain & Burkill
* ''Dioscorea gracilis''
Hook. ex Poepp.
* ''Dioscorea gracillima''
Miq.
* ''Dioscorea grandiflora''
Mart. ex Griseb.
* ''Dioscorea grandis''
R.Knuth
* ''Dioscorea grata''
Prain & Burkill
* ''Dioscorea gribinguiensis''
Baudon
* ''Dioscorea grisebachii''
Kunth
* ''Dioscorea guerrerensis''
R.Knuth
* ''Dioscorea guianensis''
R.Knuth
H
* ''Dioscorea haenkeana''
C.Presl
* ''Dioscorea hamiltonii''
Hook.f.
* ''Dioscorea hassleriana''
Chodat
* ''Dioscorea hastata''
Mill.
* ''Dioscorea hastatissima''
Rusby
* ''
Dioscorea hastifolia''
Nees
* ''Dioscorea hastiformis''
R.Knuth
* ''Dioscorea haumanii''
Xifreda
* ''Dioscorea havilandii''
Prain & Burkill
* ''Dioscorea hebridensis''
R.Knuth
* ''Dioscorea hemicrypta''
Burkill
* ''Dioscorea hemsleyi''
Prain & Burkill
* ''Dioscorea heptaneura''
Vell.
* ''Dioscorea herbert-smithii''
Rusby
* ''Dioscorea herzogii''
R.Knuth
* ''Dioscorea heteropoda''
Baker
* ''Dioscorea hexagona''
Baker
* ''Dioscorea hieronymi''
Uline ex R.Knuth
* ''Dioscorea hintonii''
R.Knuth
* ''Dioscorea hirtiflora''
Benth.
* ''Dioscorea hirtiflora subsp. orientalis''
Milne-Redh.
* ''Dioscorea hispida''
Dennst.
* ''Dioscorea holmioidea''
Maury
* ''Dioscorea hombuka''
H.Perrier
* ''Dioscorea hondurensis''
R.Knuth
* ''Dioscorea howardiana''
O.Téllez, B.G.Schub. & Geeta
* ''Dioscorea humifusa''
Poepp.
* ''Dioscorea humilis''
Bertero ex Colla
* ''Dioscorea humilis subsp. polyanthes''
(F.Phil.) Viruel, Segarra & Villar
* ''Dioscorea hunzikeri''
Xifreda
I
* ''Dioscorea igualamontana''
Matuda
* ''Dioscorea incayensis''
R.Knuth
* ''Dioscorea inopinata''
Prain & Burkill
* ''Dioscorea insignis''
C.V.Morton & B.G.Schub.
* ''Dioscorea intermedia''
Thwaites
* ''Dioscorea ionophylla''
Uline ex R.Knuth
* ''Dioscorea iquitosensis''
R.Knuth
* ''Dioscorea irupanensis''
R.Knuth
* ''Dioscorea itapirensis''
R.Knuth
* ''Dioscorea itatiensis''
R.Knuth
J
* ''Dioscorea jaliscana''
S.Watson
* ''Dioscorea jamesonii''
R.Knuth
* ''Dioscorea japonica''
Thunb. - ''Shan yao'' in Chinese ()
* ''Dioscorea javariensis''
Ayala
* ''Dioscorea juxtlahuacensis''
(O.Téllez & Dávila) Caddick & Wilkin
K
* ''Dioscorea kalkapershadii''
Prain & Burkill
* ''Dioscorea kamoonensis''
Kunth
* ''Dioscorea keduensis''
Burkill ex Backer
* ''Dioscorea kerrii''
Prain & Burkill
* ''Dioscorea killipii''
R.Knuth
* ''Dioscorea kimiae''
Wilkin
* ''Dioscorea kingii''
R.Knuth
* ''Dioscorea kituiensis''
Wilkin & Muasya
* ''Dioscorea kjellbergii''
R.Knuth
* ''Dioscorea knuthiana''
De Wild.
* ''Dioscorea koepperi''
Standl.
* ''Dioscorea koyamae''
Jayas.
* ''Dioscorea kratica''
Prain & Burkill
* ''Dioscorea kunthiana''
Uline
* ''Dioscorea kuntzei''
Uline ex Kuntze
L
* ''Dioscorea lacerdaei''
Griseb.
* ''Dioscorea laevis''
Uline
* ''Dioscorea lamprocaula''
Prain & Burkill
* ''Dioscorea lanata''
Bail
* ''Dioscorea larecajensis''
Uline ex R.Knuth
* ''Dioscorea laurifolia''
Wall. ex Hook.f.
* ''Dioscorea lawrancei''
R.Knuth
* ''Dioscorea laxiflora''
Mart. ex Griseb.
* ''Dioscorea lehmannii''
Uline
* ''Dioscorea lepcharum''
Prain & Burkill
* ''Dioscorea lepida''
C.V.Morton
* ''Dioscorea leptobotrys''
Uline ex R.Knuth
* ''Dioscorea liebmannii''
Uline
* ''Dioscorea lijiangensis''
C.L.Long & H.Li
* ''Dioscorea linearicordata''
Prain & Burkill
* ''Dioscorea lisae''
Dorr & Stergios
* ''Dioscorea listeri''
Prain & Burkill
* ''Dioscorea litoralis''
Phil.
* ''Dioscorea loefgrenii''
R.Knuth
* ''Dioscorea loheri''
Prain & Burkill
* ''Dioscorea longicuspis''
R.Knuth
* ''Dioscorea longipes''
Phil.
* ''Dioscorea longirhiza''
Caddick & Wilkin
* ''Dioscorea longituba''
Uline
* ''Dioscorea lundii''
Uline ex R.Knuth
* ''Dioscorea luzonensis''
Schauer
M
* ''Dioscorea macbrideana''
R.Knuth
* ''Dioscorea maciba''
Jum. & H.Perrier
* ''Dioscorea macrantha''
Uline ex R.Knuth
* ''Dioscorea macrothyrsa''
Uline
* ''Dioscorea macvaughii''
B.G.Schub.
* ''Dioscorea madecassa''
H.Perrier
* ''Dioscorea madiunensis''
Prain & Burkill
* ''Dioscorea maianthemoides''
Uline ex R.Knuth
* ''Dioscorea mamillata''
Jum. & H.Perrier
* ''Dioscorea mandonii''
Rusby
* ''Dioscorea mangenotiana''
J.Miège
* ''Dioscorea mantigueirensis''
R.Knuth
* ''Dioscorea margarethia''
G.M.Barroso, E.F.Guim. & Sucre
* ''Dioscorea marginata''
Griseb.
* ''Dioscorea martensis''
R.Knuth
* ''Dioscorea martiana''
Griseb.
* ''Dioscorea martini''
Prain & Burkill
* ''Dioscorea matagalpensis''
Uline
* ''Dioscorea matudae''
O.Téllez & B.G.Schub.
* ''Dioscorea mayottensis''
Wilkin
* ''Dioscorea megacarpa''
Gleason
* ''Dioscorea megalantha''
Griseb.
* ''Dioscorea melanophyma''
Prain & Burkill
* ''Dioscorea melastomatifolia''
Uline ex Prain
* ''Dioscorea membranacea''
Pierre ex Prain & Burkill
* ''Dioscorea menglaensis''
H.Li
* ''Dioscorea meridensis''
Kunth
* ''Dioscorea merrillii''
Prain & Burkill
* ''Dioscorea mesoamericana''
O.Téllez & Mart.-Rodr.
* ''Dioscorea mexicana''
Scheidw.
* ''Dioscorea microbotrya''
Griseb.
* ''Dioscorea microcephala''
Uline
* ''Dioscorea microura''
R.Knuth
* ''Dioscorea mindanaensis''
R.Knuth
* ''Dioscorea minima''
C.B.Rob. & Seaton
* ''Dioscorea minutiflora''
Engl.
* ''Dioscorea mitis''
C.V.Morton
* ''Dioscorea mitoensis''
R.Knuth
* ''Dioscorea modesta''
Phil.
* ''Dioscorea mollis''
Kunth
* ''Dioscorea monadelpha''
(Kunth) Griseb.
* ''Dioscorea × monandra''
Hauman
* ''Dioscorea morelosana''
(Uline) Matuda
* ''Dioscorea moritziana''
(Kunth) R.Knuth
* ''Dioscorea mosqueirensis''
R.Knuth
* ''Dioscorea moultonii''
Prain & Burkill
* ''Dioscorea moyobambensis''
R.Knuth
* ''Dioscorea mucronata''
Uline ex R.Knuth
* ''Dioscorea multiflora''
Mart. ex Griseb.
* ''Dioscorea multiloba''
Kunth
* ''Dioscorea multinervis''
Benth.
* ''Dioscorea mundii''
Baker
N
* ''Dioscorea nako''
H.Perrier
* ''Dioscorea namorokensis''
Wilkin
* ''Dioscorea nana''
Poepp.
* ''Dioscorea nanlaensis''
H.Li
* ''Dioscorea natalensis''
R.Knuth
* ''Dioscorea natalia''
Hammel
* ''Dioscorea neblinensis''
Maguire & Steyerm.
* ''Dioscorea nelsonii''
Uline ex R.Knuth
* ''Dioscorea nematodes''
Uline ex R.Knuth
* ''Dioscorea nervata''
R.Knuth
* ''Dioscorea nervosa''
Phil.
* ''Dioscorea nicolasensis''
R.Knuth
* ''Dioscorea nieuwenhuisii''
Prain & Burkill
* ''Dioscorea nipensis''
R.A.Howard
* ''Dioscorea nipponica''
Makino
* ''Dioscorea nitens''
Prain & Burkill
* ''Dioscorea nuda''
R.Knuth
* ''Dioscorea nummularia''
Lam.
* ''Dioscorea nutans''
R.Knuth
O
* ''Dioscorea oaxacensis''
Uline
* ''Dioscorea obcuneata''
Hook.f.
* ''Dioscorea oblonga''
Gleason
* ''Dioscorea oblongifolia''
Rusby
* ''Dioscorea obtusifolia''
Hook. & Arn.
* ''Dioscorea olfersiana''
Klotzsch ex Griseb.
* ''Dioscorea oligophylla''
Phil.
* ''Dioscorea omiltemensis''
O.Téllez
* ''Dioscorea opaca''
R.Knuth
* ''Dioscorea oppositiflora''
Griseb.
* ''Dioscorea oppositifolia''
L. - ''Shan yao'' in Chinese ()
* ''Dioscorea orangeana''
Wilkin
* ''Dioscorea orbiculata''
Hook.f.
* ''Dioscorea orbiculata var. tenuifolia''
(Ridl.) Thapyai
* ''Dioscorea oreodoxa''
B.G.Schub.
* ''Dioscorea organensis''
R.Knuth
* ''Dioscorea orientalis''
(J.Thiébaut) Caddick & Wilkin
* ''Dioscorea orizabensis''
Uline
* ''Dioscorea orthogoneura''
Uline ex Hochr.
* ''Dioscorea oryzetorum''
Prain & Burkill
* ''Dioscorea ovalifolia''
R.Knuth
* ''Dioscorea ovata''
Vell.
* ''Dioscorea ovinala''
Baker
P
* ''Dioscorea palawana''
Prain & Burkill
* ''Dioscorea paleata''
Burkill
* ''Dioscorea pallens''
Schltdl.
* ''Dioscorea pallidinervia''
R.Knuth
* ''Dioscorea palmeri''
R.Knuth
* ''Dioscorea panamensis''
R.Knuth
* ''Dioscorea panthaica''
Prain & Burkill
* ''Dioscorea pantojensis''
R.Knuth
* ''Dioscorea paradoxa''
Prain & Burkill
* ''Dioscorea pavonii''
Uline ex R.Knuth
* ''Dioscorea pedicellata''
Phil.
* ''Dioscorea pencana''
Phil.
* ''Dioscorea pendula''
Poepp. ex Kunth
* ''Dioscorea pentaphylla''
L.
* ''Dioscorea peperoides''
Prain & Burkill
* ''Dioscorea perdicum''
Taub.
* ''Dioscorea perenensis''
R.Knuth
* ''Dioscorea perpilosa''
H.Perrier
* ''Dioscorea petelotii''
Prain & Burkill
* ''Dioscorea philippiana''
Uline ex R.Knuth
* ''Dioscorea piauhyensis''
R.Knuth
* ''Dioscorea pierrei''
Prain & Burkill
* ''Dioscorea pilcomayensis''
Hauman
* ''Dioscorea pilgeriana''
R.Knuth
* ''Dioscorea pilosiuscula''
Bertero ex Spreng.
* ''Dioscorea pinedensis''
R.Knuth
* ''Dioscorea piperifolia''
Humb. & Bonpl. ex Willd.
* ''Dioscorea piscatorum''
Prain & Burkill
* ''Dioscorea pittieri''
R.Knuth
* ''Dioscorea planistipulosa''
Uline ex R.Knuth
* ''Dioscorea plantaginifolia''
R.Knuth
* ''Dioscorea platycarpa''
Prain & Burkill
* ''Dioscorea platycolpota''
Uline ex B.L.Rob.
* ''Dioscorea plumifera''
C.B.Rob.
* ''Dioscorea pohlii''
Griseb.
* ''Dioscorea pohlii var. luschnathiana''
(Kunth) Uline ex R.Knuth
* ''Dioscorea poilanei''
Prain & Burkill
* ''Dioscorea polyclados''
Hook.f.
* ''Dioscorea polygonoides''
Humb. & Bonpl. ex Willd.
* ''Dioscorea polystachya''
Turcz. (also: ''Dioscorea batatas
Decne'')
* ''Dioscorea pomeroonensis''
R.Knuth
* ''Dioscorea potarensis''
R.Knuth
* ''Dioscorea praehensilis''
Benth.
* ''Dioscorea prainiana''
R.Knuth
* ''Dioscorea prazeri''
Prain & Burkill
* ''Dioscorea preslii''
Steud.
* ''Dioscorea preussii''
Pax
* ''Dioscorea preussii subsp. hylophila''
(Harms) Wilkin
* ''Dioscorea pringlei''
C.B.Rob.
* ''Dioscorea proteiformis''
H.Perrier
* ''Dioscorea psammophila''
R.Knuth
* ''Dioscorea pseudomacrocapsa''
G.M.Barroso, E.F.Guim. & Sucre
* ''Dioscorea pseudorajanioides''
R.Knuth
* ''Dioscorea pseudotomentosa''
Prain & Burkill
* ''Dioscorea pteropoda''
Boivin ex H.Perrier
* ''Dioscorea pubera''
Blume
* ''Dioscorea pubescens''
Poir.
* ''Dioscorea pumicicola''
Uline
* ''Dioscorea pumilio''
Griseb.
* ''Dioscorea puncticulata''
R.Knuth
* ''Dioscorea purdiei''
R.Knuth
* ''Dioscorea putisensis''
R.Knuth
* ''Dioscorea putumayensis''
R.Knuth
* ''Dioscorea pynaertii''
De Wild.
* ''Dioscorea pyrenaica''
Bubani & Bordère ex Gren.
* ''Dioscorea pyrifolia''
Kunth
Q
* ''Dioscorea quartiniana''
A.Rich.
* ''Dioscorea quaternata''
J.F. Gmel.
* ''Dioscorea quinquelobata''
Thunb.
* ''Dioscorea quispicanchensis''
R.Knuth
R
* ''Dioscorea racemosa''
(Klotzsch) Uline
* ''Dioscorea regnellii''
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