|
Orobanchaceae
Orobanchaceae, the broomrapes, is a family of mostly parasitic plants of the order Lamiales, with about 90 genera and more than 2000 species. Many of these genera (e.g., ''Pedicularis'', ''Rhinanthus'', ''Striga'') were formerly included in the family Scrophulariaceae ''sensu lato''. With its new circumscription, Orobanchaceae forms a distinct, monophyletic family. From a phylogenetic perspective, it is defined as the largest crown clade containing '' Orobanche major'' and relatives, but neither ''Paulownia tomentosa'' nor ''Phryma leptostachya'' nor '' Mazus japonicus''. The Orobanchaceae are annual herbs or perennial herbs or shrubs, and most (all except ''Lindenbergia'', ''Rehmannia'' and ''Triaenophora'') are parasitic on the roots of other plants—either holoparasitic or hemiparasitic (fully or partly parasitic). The holoparasitic species lack chlorophyll and therefore cannot perform photosynthesis. Description Orobanchaceae is the largest of the 20–28 dicot fami ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scrophulariaceae
The Scrophulariaceae are a family of flowering plants, commonly known as the figwort family. The plants are annual and perennial herbs, as well as shrubs. Flowers have bilateral (zygomorphic) or rarely radial (actinomorphic) symmetry. The Scrophulariaceae have a cosmopolitan distribution, with the majority found in temperate areas, including tropical mountains. The family name is based on the name of the included genus ''Scrophularia'' L. Taxonomy In the past, it was treated as including about 275 genera and over 5,000 species, but its circumscription has been radically altered since numerous molecular phylogenies have shown the traditional broad circumscription to be grossly polyphyletic. Many genera have recently been transferred to other families within the Lamiales, notably Plantaginaceae and Orobanchaceae, but also several new families. - on linhere/ref> Several families of the Lamiales have had their circumscriptions enlarged to accommodate genera transferred from t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lindenbergia
''Lindenbergia'' is a genus of herbaceous plants in the order Lamiales and in the broomrape family Orobanchaceae. It is one of the few genera of the family which are not parasitic. It contains about 15 species found from northeast Africa across Asia to the Philippines, and is most abundant in India. Taxonomy The genus ''Lindenbergia'' was erected by Johann Lehmann in 1829. It is named in honor of Johann Bernhard Wilhelm Lindenberg, a lawyer and bryologist from Germany. ''Lindenbergia'' was originally placed in the family Scrophulariaceae. Molecular phylogenetic studies have caused that family to be split up, with many genera, including ''Lindenbergia'', placed in a greatly expanded family Orobanchaceae. ''Lindenbergia'' has been placed in the tribe Lindenbergieae,Stevens, P.F. (2001 onwards)"Orobanchaceae" ''Angiosperm Phylogeny Website''. Retrieved 2022-03-21. one of two basal clades in the family Orobanchaceae that are not parasitic: Species , Plants of the World Online ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lindenbergieae
''Lindenbergia'' is a genus of herbaceous plants in the order Lamiales and in the broomrape family Orobanchaceae. It is one of the few genera of the family which are not parasitic. It contains about 15 species found from northeast Africa across Asia to the Philippines, and is most abundant in India. Taxonomy The genus ''Lindenbergia'' was erected by Johann Lehmann in 1829. It is named in honor of Johann Bernhard Wilhelm Lindenberg, a lawyer and bryologist from Germany. ''Lindenbergia'' was originally placed in the family Scrophulariaceae. Molecular phylogenetic studies have caused that family to be split up, with many genera, including ''Lindenbergia'', placed in a greatly expanded family Orobanchaceae. ''Lindenbergia'' has been placed in the tribe Lindenbergieae,Stevens, P.F. (2001 onwards)"Orobanchaceae" ''Angiosperm Phylogeny Website''. Retrieved 2022-03-21. one of two basal clades in the family Orobanchaceae that are not parasitic: Species , Plants of the World Online ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rehmannieae
''Rehmannia'' is a genus of seven species of flowering plants in the order Lamiales and family Orobanchaceae, endemic to China. It has been placed as the only member of the monotypic tribe Rehmannieae, but molecular phylogenetic studies suggest that it forms a clade with ''Triaenophora''. Contrary to the immense majority of the taxa of Orobanchaceae, ''Rehmannia'' is not parasitic. Systematics Etymology ''Rehmannia'' is named for Joseph Rehmann (1788–1831), a physician in St. Petersburg.Gledhill, David (2008). "The Names of Plants". Cambridge University Press. (hardback), (paperback). pp 328 Homonymy The name "Rehmannia" has also been given to a genus of Jurassic ammonites of the family Reineckeidae. Classification The genus was included in the family Scrophulariaceae or Gesneriaceae in some older classifications. The current placement of the genus is in neither Scrophulariaceae s.s. nor Plantaginaceae s.l. (to which many other former Scrophulariaceae have been transferred) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhinantheae
Rhinantheae is a tribe with less than 20 genera of herbaceous plants in the family Orobanchaceae. Phylogeny The phylogeny of the genera of Rhinantheae has been explored using DNA markers. Three assemblages can be distinguished in this tribe: * ''Rhinanthus'' is the sister genus to ''Lathraea'', and then to ''Rhynchocorys''. These taxa are closely related to the core Rhinanteae. * In the core Rhinantheae, ''Odontites'' sensu lato, including ''Bornmuellerantha'' and ''Bartsiella'', is the sister genus to ''Bellardia'', including ''Parentucellia'' and ''Bartsia canescens'' + ''B. mutica''. These taxa are closely related to ''Hedbergia'' (including ''Bartsia decurva'' + ''B. longiflora'') and ''Tozzia''. In turn, these genera share phylogenetic affinities with ''Euphrasia'', and then with ''Bartsia'' sensu stricto (''Bartsia alpina''). * ''Melampyrum'' occupies an isolated, deep-branching position. The median crown age of Rhinantheae was estimated to be ca. 30 Myr. Systematics ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Striga
''Striga'', commonly known as witchweed, is a genus of parasitic plants that occur naturally in parts of Africa, Asia, and Australia. It is currently classified in the family Orobanchaceae, although older classifications place it in the Scrophulariaceae. Some species are serious pathogens of cereal crops, with the greatest effects being in savanna agriculture in Africa. It also causes considerable crop losses in other regions, including other tropical and subtropical crops in its native range and in the Americas. Witchweeds are characterized by bright-green stems and leaves and small, brightly colored and attractive flowers.Sand, Paul, Robert Eplee, and Randy Westbrooks. Witchweed Research and Control in the United States. Champaign, IL: Weed Science Society of America, 1990. They are obligate parasite, obligate hemiparasites of roots and require a living host for germination and initial development, though they can then survive on their own. The number of species is uncertain, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brandisia
''Brandisia'' is a genus of flowering plants in the family Orobanchaceae Orobanchaceae, the broomrapes, is a family of mostly parasitic plants of the order Lamiales, with about 90 genera and more than 2000 species. Many of these genera (e.g., ''Pedicularis'', ''Rhinanthus'', ''Striga'') were formerly included in the ....McNeal, J. R. et al. 2013. Phylogeny and origins of holoparasitism in Orobanchaceae. Am. J. Bot. 100:971-983 Species *'' Brandisia annamitica'' Bonati *'' Brandisia cauliflora'' P.C.Tsoong & L.T.Lu *'' Brandisia chevalieri'' Bonati *'' Brandisia discolor'' Hook.f. & Thomson *'' Brandisia glabrescens'' Rehder *'' Brandisia hancei'' Hook.f. *'' Brandisia kwangsiensis'' H.L.Li *'' Brandisia racemosa'' Hemsl. *'' Brandisia rosea'' W.W.Sm. *'' Brandisia scandens'' Bonati *'' Brandisia swinglei'' Merr. ;Species brought into synonymy: * ''Brandisia pubiflora'' Benth.: synonym of '' Alternanthera pubiflora'' (Benth.) Kuntze References External links * http://www.t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhinanthus
''Rhinanthus'' is a genus of annual hemiparasitic herbaceous plants in the family Orobanchaceae, formerly classified in the family Scrophulariaceae. Its species are commonly known as rattles. The genus consists of about 30 to 40 species found in Europe, northern Asia, and North America, with the greatest species diversity (28 species) in Europe. Phylogeny The phylogeny of the genera of Rhinantheae has been explored using molecular characters. ''Rhinanthus'' is the sister genus to ''Lathraea'', and then to ''Rhynchocorys''. These three genera share phylogenetic affinities with members of the core Rhinantheae: ''Bartsia'', ''Euphrasia'', '' Tozzia'', ''Hedbergia'', '' Bellardia'', and ''Odontites''. ''Melampyrum ''Melampyrum'' is a genus of about 20 species of herbaceous flowering plants in the family Orobanchaceae known commonly as cow wheat. They are native to temperate regions of the Northern Hemisphere. They are hemiparasites on other plants, obtai ...'' appears as a more ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orobanche Minor
''Orobanche minor'', the hellroot, common broomrape, lesser broomrape, small broomrape or clover broomrape, is a holoparasitic flowering plant belonging to the family Orobanchaceae. It is one of about 150 non-photosynthetic plants in the genus ''Orobanche'' that parasitize autotrophic plants. Characteristics and growth requirements ''Orobanche minor'' grows to and is a perennial. The flowers are hermaphrodite. Common broomrape grows in a wide variety of soils, namely moist, light (sandy), medium (loamy) and heavy (clay) soils that are acid, neutral or basic. It can grow in semi-shade or in full sunlight. The species appears in a wide range of colours from red-brown, yellow-brown to purple. Yellow specimens are also not uncommon and it is this extreme variability that makes identification on the basis of size or colour uncertain. It is parasitic on various members of the pea (Fabaceae) and daisy (Asteraceae) families. Although widespread, its appearance is sporadic; despite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orobanche Major
''Orobanche'', commonly known as broomrape, is a genus of over 200 species of small parasitic herbaceous plants, mostly native to the temperate Northern Hemisphere. It is the type genus of the broomrape family Orobanchaceae. Description Broomrapes are generally small, only tall depending on species. They are best recognized by the yellow- to straw-coloured stems completely lacking chlorophyll, bearing yellow, white, or blue snapdragon-like flowers. The flower shoots are scaly, with a dense terminal spike of 10-20 flowers in most species, although single in one-flowered broomrape (''Orobanche uniflora''). The leaves are merely triangular scales. The seeds are minute, tan or brown, blackening with age. These plants generally flower from late winter to late spring. When they are not flowering, no part of the plants is visible above the surface of the soil. Parasitism As they have no chlorophyll, the broomrapes are totally dependent on other plants for nutrients. Broomrape seeds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parasitic Plant
A parasitic plant is a plant that derives some or all of its nutritional requirements from another living plant. They make up about 1% of angiosperms and are found in almost every biome. All parasitic plants develop a specialized organ called the haustorium, which penetrates the host plant, connecting them to the host vasculature – either the xylem, phloem, or both. For example, plants like ''Striga'' or ''Rhinanthus'' connect only to the xylem, via xylem bridges (xylem-feeding). Alternately, plants like ''Cuscuta'' and some members of ''Orobanche'' connect to both the xylem and phloem of the host. This provides them with the ability to extract water and nutrients from the host. Parasitic plants are classified depending on the location where the parasitic plant latches onto the host (root or stem), the amount of nutrients it requires, and their photosynthetic capability. Some parasitic plants can locate their host plants by detecting volatile chemicals in the air or soil given ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pedicularis
''Pedicularis'' is a genus of perennial green root parasite plants currently placed in the family Orobanchaceae (the genus previously having been placed in Scrophulariaceae ''sensu lato''). Description Between 350 and 600 species are accepted by different authorities, mostly from the wetter northern temperate zones, as well as from South America. The highest diversity is in eastern Asia, with 352 species accepted in China alone. Taxonomy The common name lousewort, applied to several species, derives from an old belief that these plants, when ingested, were responsible for lice infestations in livestock. The genus name ''Pedicularis'' is from the Latin ''pediculus'' meaning louse. Selected species *''Pedicularis acaulis'' *''Pedicularis amoena'' *''Pedicularis arguteserrata'' *''Pedicularis ascendens'' *''Pedicularis asparagoides'' *''Pedicularis asplenifolia'' *''Pedicularis attollens'' (little elephant's head) *''Pedicularis baumgartenii'' *''Pedicularis bhutanomuscoide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
