Tolong jelaskan mengenai Achnatherum

Achnatherum adalah genus tumbuhan, yang di dalamnya termasuk juga sejumlah spesies dari genus Nassella.

Spesies yang dikenali oleh Plants of the World Online per November 2019:

Spesies yang dahulu termasuk dalam Achnatherum:

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 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 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