Tristachya (common name Trident grasses) is a genus of African and Latin American plants in tribe Tristachyideae within the grass family. Species 1. \n* Tristachya angustifolia Hitchc. - Nayarit in western Mexico 2. \n* Tristachya auronitens J.Duvign. - Zaïre 3. \n* Tristachya avenacea (J.Presl) Scribn. & Merr. - Mexico, Central America 4. \n* Tristachya bequaertii De Wild. - Zaïre, Tanzania, Angola, Malawi, Zambia 5. \n* Tristachya betsileensis A.Camus - Madagascar 6. \n* Tristachya bicrinita (J.B.Phipps) Clayton - Tanzania, Zambia 7. \n* Tristachya biseriata Stapf - Lesotho, Gauteng, Limpopo, Mpumalanga 8. \n* Tristachya contrerasii R.Guzmán - Jalisco in western Mexico 9. \n* Tristachya hubbardiana Conert - Zaïre, Tanzania, Angola, Zambia 10. \n* Tristachya huillensis Rendle - Z