Achnatherum
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| Achnatherum | ||||||||||||||
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 Achnatherum parishii
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Achnatherum is a genus of plants which includes several species of needlegrass. Several needlegrass species have been switched between Achnatherum and genus Stipa; taxonomy between the two closely-related genera is still uncertain.
Achnatherum hymenoides was useful as a food source to Native Americans. Achnatherum brachychaetum is best known as a noxious weed.
Selected species:
- Achnatherum aridum - Mormon needlegrass
- Achnatherum brachychaetum - punagrass
- Achnatherum coronatum - crested needlegrass
- Achnatherum diegoense - San Diego needlegrass
- Achnatherum eminens - southwestern needlegrass
- Achnatherum hymenoides - Indian ricegrass
- Achnatherum latiglume - wide-glumed needlegrass
- Achnatherum lemmonii - Lemmon's needlegrass
- Achnatherum lettermanii - Letterman's needlegrass
- Achnatherum lobatum - lobed needlegrass
- Achnatherum nelsonii - Nelson's needlegrass, Dore's needlegrass
- Achnatherum nevadense - Nevada needlegrass
- Achnatherum occidentale - western needlegrass
- Achnatherum perplexum - perplexing needlegrass
- Achnatherum pinetorum - pinewoods needlegrass
- Achnatherum robustum - sleepygrass
- Achnatherum stillmanii - Stillman's needlegrass
- Achnatherum thurberianum - Thurber's needlegrass
