Oryzopsis
| ricegrass | |
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| Oryzopsis hymenoides | |
| Scientific classification | |
| Kingdom: | |
| (unranked): | |
| (unranked): | |
| (unranked): | |
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| Genus: |
Oryzopsis
Michx., 1803
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| Type species | |
| Oryzopsis asperifolia |
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| Synonyms[1] | |
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Dilepyrum Raf. 1808, illegitimate name not Michx. 1803 |
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Oryzopsis is a genus of Chinese and North American plants in the grass family.[2][3][4] Species from this genus are commonly called ricegrass.[5]
The name alludes to the resemblance between this genus and true rice, Oryza.
- Oryzopsis asperifolia Michx. – roughleaf ricegrass [7] - Canada (all 10 provinces plus Yukon + Northwest Territories), USA (Northeast, Great Lakes, Black Hills, Rocky Mountains)[8]
- 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 hymenoides (Roem. & Schult.) Ricker ex Piper - western North America from British Columbia + Alberta to California + New Mexico
- Oryzopsis pungens (Torr.) Hitchc. - Canada, northern USA
- Oryzopsis racemosa (Sm.) Ricker ex Hitchc. - eastern Canada, northeastern + north-central USA
- Oryzopsis swallenii C.L.Hitchc.& Spellenb. - Idaho, Wyoming
- formerly included[1]
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
References
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- ↑ 1.0 1.1 1.2 Kew World Checklist of Selected Plant Families
- ↑ Michaux, André 1803. Flora Boreali-Americana 1: 51 in Latin
- ↑ Michaux, André 1803. Flora Boreali-Americana 1: plate 9 line drawing of Oryzopsis asperifolia
- ↑ Tropicos, Oryzopsis Michx.
- ↑ Oryzopsis USDA Plants Database (24 Nov 2011)
- ↑ The Plant List search for Oryzopsis
- ↑ Oryzopsis asperifolia USDA Plants Database (24 Nov 2011)
- ↑ Biota of North American Biota Program 2013 county distribution map
