Dissanthelium is a genus of plants in the grass family. It is native to the Americas, especially in the Andes of South America. The only species native to the United States, D. californicum, was thought to be extinct until a single population was discovered on Santa Catalina Island, California, in 2005. Species Dissanthelium amplivaginatum - Ancash in Peru Dissanthelium breve - Peru, Bolivia Dissanthelium brevifolium - Peru Dissanthelium californicum - California (Santa Catalina I, †San Clemente I), †Baja California (†Guadalupe I) Dissanthelium calycinum - Peru, Bolivia, Mexico Dissanthelium giganteum - Peru Dissanthelium laxifolium Swallen & Tovar - Peru, Bolivia Dissanthelium longifolium Tovar - Huánuco in Peru Dissanthelium longiligulatum Swallen & Tovar - La Paz in Bolivia Dissanthelium macusaniense (E.H.L.Krause) R.C.Foster & L.B.Sm. - Peru, Bolivia, Argentina Dissanthelium peruvianum - Peru, Bolivia, Argentina, Chile Dissanthelium pygmaeum - Huancavelica in Peru Dissanthelium rauhii - Peru Dissanthelium trollii - La Paz in Bolivia, eastern Peru formerly included see Poa Dissanthelium atropidiforme - Poa atropidiformis Dissanthelium patagonicum - Poa atropidiformis References Pooideae Poaceae genera