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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Monocots
Cladus: Commelinids
Ordo: Poales

Familia: Poaceae
Subfamilia: Panicoideae
Tribus: Tristachyideae
Genus: Tristachya
Species: T. angustifolia – T. auronitens – T. avenacea – T. bequaertii – T. betsileensis – T. bicrinita – T. biseriata – T. hubbardiana – T. huillensis – T. humbertii – T. laxa – T. leiostachya – T. leucothrix – T. lualabaensis – T. nodiglumis – T. pedicellata – T. rehmannii – T. superba – T. tholloni – T. thollonii – T. viridearistata
Name

Tristachya Nees in C.F.P.von Martius, Fl. Bras. Enum. Pl. 2: 458 (1829)
Type species: Tristachya leiostachya Nees in C.F.P.von Martius, Fl. Bras. Enum. Pl. 2: 459 (1829)

Synonyms

Heterotypic
Monopogon J.Presl in C.B.Presl, Reliq. Haenk. 1: 324 (1830)
Loudetia Hochst. ex A.Braun, Flora 24: 713 (1841), nom. rej.
Apochaete (C.E.Hubb.) J.B.Phipps, Kirkia 4: 105 (1964)
Dolichochaete (C.E.Hubb.) J.B.Phipps, Kirkia 4: 109 (1964)
Muantijamvella J.B.Phipps, Kirkia 4: 106 (1964)
Veseyochloa J.B.Phipps, Kirkia 4: 106 (1964)
Isalus J.B.Phipps, Kirkia 5: 232 (1966)

References

Nees von Esenbeck, C.G.D. (1829) Flora Brasiliensis seu Enumeratio Plantarum 2(1): 458.
Govaerts, R. et al. 2013. Tristachya in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2013 Nov. 30. Reference page.
Simon, B.K., Clayton, W.D., Harman, K.T., Vorontsova, M., Brake, I., Healy, D. & Alfonso, Y. 2013. GrassWorld, Tristachya. Published on the internet. Accessed: 2013 Nov. 30.
Tropicos.org 2013. Tristachya. Missouri Botanical Garden. Published on the internet. Accessed: 2013 Nov. 30.
International Plant Names Index. 2013. Tristachya. Published online. Accessed: 30 Nov. 2013.

Tristachya (common name trident grasses) is a genus of African and Latin American plants in tribe Tristachyideae within the grass family.[2][4][5]

Species[3][6]

Tristachya angustifolia Hitchc. - Nayarit in western Mexico
Tristachya auronitens J.Duvign. - Zaïre
Tristachya avenacea (J.Presl) Scribn. & Merr. - Mexico, Central America
Tristachya bequaertii De Wild. - Zaïre, Tanzania, Angola, Malawi, Zambia
Tristachya betsileensis A.Camus - Madagascar
Tristachya bicrinita (J.B.Phipps) Clayton - Tanzania, Zambia
Tristachya biseriata Stapf - Lesotho, Gauteng, Limpopo, Mpumalanga
Tristachya contrerasii R.Guzmán - Jalisco in western Mexico
Tristachya hubbardiana Conert - Zaïre, Tanzania, Angola, Zambia
Tristachya huillensis Rendle - Zaïre, Angola, Malawi, Zambia
Tristachya humbertii A.Camus - Madagascar
Tristachya laxa Scribn. & Merr. - Mexico (Durango, Nayarit, Sinaloa)
Tristachya leiostachya Nees - Paraguay, Brazil
Tristachya leucothrix Trin. ex Nees - central + southern Africa
Tristachya lualabaensis (De Wild.) J.B.Phipps - central + southern Africa
Tristachya nodiglumis K.Schum. - central + southern Africa
Tristachya papilosa R.Guzmán - Nayarit in western Mexico
Tristachya pedicellata Stent - Limpopo Province in South Africa
Tristachya rehmannii Hack. - central + southern Africa
Tristachya superba (De Not.) Schweinf. & Asch. - sub-Saharan Africa
Tristachya thollonii Franch. - from Chad to Angola
Tristachya viridearistata (J.B.Phipps) Clayton - Tanzania, Zambia, Burundi

formerly included[3]

see Danthoniopsis Dilophotriche Loudetia Loudetiopsis Trichopteryx Zonotriche

Tristachya anthoxanthoides - Loudetia vanderystii
Tristachya arundinacea - Loudetia arundinacea
Tristachya aurea - Zonotriche inamoena
Tristachya barbata - Danthoniopsis barbata
Tristachya bricchettiana - Danthoniopsis barbata
Tristachya chevalieri - Loudetiopsis chevalieri
Tristachya chrysothrix - Loudetiopsis chrysothrix
Tristachya coarctata - Loudetiopsis coarctata
Tristachya decora - Zonotriche decora
Tristachya dregeana - Trichopteryx dregeana
Tristachya elegans - Loudetia simplex
Tristachya esculenta - Loudetia esculenta
Tristachya fulva - Loudetiopsis chrysothrix
Tristachya glabrinodis - Loudetiopsis kerstingii
Tristachya inamoena - Zonotriche inamoena
Tristachya kagerensis - Loudetia kagerensis
Tristachya kerstingii - Loudetiopsis kerstingii
Tristachya microstachya - Dilophotriche tristachyoides
Tristachya minuta - Dilophotriche tristachyoides
Tristachya multinodis - Dilophotriche tristachyoides
Tristachya parviflora - Loudetiopsis ambiens
Tristachya pilgeriana - Zonotriche decora
Tristachya purpurea - Dilophotriche purpurea
Tristachya ringoetii - Zonotriche inamoena
Tristachya scaettae - Loudetiopsis scaettae
Tristachya simplex - Loudetia simplex
Tristachya somalensis - Danthoniopsis barbata
Tristachya stocksii - Danthoniopsis stocksii
Tristachya tristachyoides - Dilophotriche tristachyoides
Tristachya triticoides - Loudetia coarctata
Tristachya tuberculata - Dilophotriche tristachyoides

References

lectotype designated by Swallen, N. Amer. Fl 17(8): 578 (14 Jul 1939)
Tropicos, Tristachya Nees
Kew World Checklist of Selected Plant Families
Hoare, D. B. "Tristachya leucothrix Nees". FAO. CIAT/FAO collaboration on Tropical Forages. Retrieved 20 January 2015.
Nees von Esenbeck, Christian Gottfried Daniel. 1829. Flora Brasiliensis seu Enumeratio Plantarum 2(1): 458
The Plant List search for Tristachya

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