Oryzopsis

Oryzopsis is a genus of Chinese and North American plants in the grass family. Species from this genus are commonly called ricegrass. The name alludes to the resemblance between this genus and true rice, Oryza. Species Oryzopsis asperifolia Michx. – roughleaf ricegrass - Canada (all 10 provinces plus Yukon + Northwest Territories), United States (Northeast, Great Lakes, Black Hills, Rocky Mountains) Oryzopsis chinensis Hitchc. - China Oryzopsis contracta (B.L.Johnson) Schltr. - Colorado, Wyoming, Montana Oryzopsis exigua Thurb. - Wyoming Oryzopsis hendersonii Vasey - Oregon, Idaho, Washington state Oryzopsis holciformis (M.Bieb.) Hack. (syn. Piptatherum holciforme (M.Bieb.) Roem. & Schult.) - Israel Oryzopsis hymenoides (Roem. & Schult.) Ricker ex Piper - western North America from British Columbia + Alberta to California + New Mexico Oryzopsis pungens (Torr.) Hitchc. - Canada, northern United States Oryzopsis swallenii C.L.Hitchc.& Spellenb. - Idaho, Wyoming formerly included numer......read more on Wikipedia.