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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 acutum'' (Swallen) Valdés-Reyna & Barkworth * ''Achnatherum aridum'' (M.E.Jones) Barkworth - Mormon needlegrass * ''Achnatherum bloomeri'' (Boland.) Barkworth - Bloomer's ricegrass * ''Achnatherum bromoides'' (L.) P. Beauv. * ''Achnatherum brachychaetum'' (Godr.) Barkworth - punagrass * ''Achnatherum calamagrostis'' (''Stipa calamagrostis'') (L.) Beauv. - Spear grass, Needle Grass, Silver Spike Grass * ''Achnatherum capense'' (L.) P. Beauv. * ''Achnatherum caragana'' (Trin. & Rupr.) Nevski * ''Achnatherum caudatum'' (Trin.) S. L. W. Jacobs & J. Everett - Chilean ricegrass * ''Achnatherum clandestinum'' (Hack.) Barkworth - Mexican ricegrass * ''Achnatherum contractum'' (B.L. Johnson) Barkworth - contracted ricegrass * ''Achnatherum coronatum'' (Thurb.) Barkworth - crested needlegrass * ''Achnatherum curvifolium'' (Swallen) Barkworth - Guadalupe ricegrass * ''Achnatherum diegoense'' (Swallen) Barkworth - San Diego needlegrass * ''Achnatherum duthiei'' (Hook.f.) P.C. Kuo & S.L. Lu * ''Achnatherum editorum'' (E. Fourn.) Valdés-Reyna & Barkworth * ''Achnatherum eminens'' (Cav.) Barkworth - southwestern needlegrass * ''Achnatherum hendersonii'' (Vasey) Barkworth - Henderson's needlegrass * ''Achnatherum hymenoides'' (''Oryzopsis hymenoides'') Ricker ex Piper - Indian ricegrass * ''Achnatherum latiglume'' (Swallen) Barkworth - wide-glumed needlegrass * ''Achnatherum lemmonii'' (Vasey) Barkworth - Lemmon's needlegrass * ''Achnatherum lettermanii'' (Vasey) Barkworth - Letterman's needlegrass * ''Achnatherum lobatum'' (Swallen) Barkworth - lobed needlegrass * ''Achnatherum nelsonii'' (Scribn.) Barkworth - Nelson's needlegrass, Dore's needlegrass * ''Achnatherum nevadense'' (B.L. Johnson) Barkworth - Nevada needlegrass * ''Achnatherum occidentale'' (Thurb.) Barkworth - western needlegrass * ''Achnatherum parishii'' (Vasey) Barkworth - Parish's needlegrass * ''Achnatherum perplexum'' Hoge & Barkworth - perplexing needlegrass * ''Achnatherum pinetorum'' (M.E. Jones) Barkworth - pinewoods needlegrass * ''Achnatherum richardsonii'' (Link) Barkworth - Richardson's needlegrass * ''Achnatherum robustum'' (Vasey) Barkworth - sleepygrass * ''Achnatherum roshevitzii'' Mussajev - Roshevich's achnatherum * ''Achnatherum scribneri'' (Vasey) Barkworth - Scribner needlegrass * ''Achnatherum speciosum'' Trin. & Rupr. - desert needlegrass * ''Achnatherum splendens'' (Trin.) Nevski * ''Achnatherum stillmanii'' (Bol.) Barkworth - Stillman's needlegrass * ''Achnatherum thurberianum'' (Piper) Barkworth - Thurber's needlegrass * ''Achnatherum swallenii'' (C.L. Hitchc. & Spellenb.) Barkworth - Swallen's needlegrass * ''Achnatherum webberi'' (Thurb.) Barkworth - Webber needlegrass 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Achnatherum」の詳細全文を読む スポンサード リンク
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