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.
; SpeciesOryzopsis asperifolia – roughleaf ricegrass - Canada, United States Oryzopsis chinensis - ChinaOryzopsis contracta - Colorado, Wyoming, MontanaOryzopsis exigua - WyomingOryzopsis hendersonii - Oregon, Idaho, Washington stateOryzopsis holciformis - IsraelOryzopsis hymenoides - western North America from British Columbia + Alberta to California + New MexicoOryzopsis pungens - Canada, northern United StatesOryzopsis swallenii - Idaho, Wyoming
; formerly included
numerous species once regarded as members of Oryzopsis but now considered better suited to other genera: ''Achnatherum Achnella Anemanthele Eriocoma Nassella Piptatherum Piptatheropsis Piptochaetium Ptilagrostis Stipa Stiporyzopsis''