| 词条 | Arrhenatherum |
| 释义 |
|image = Arrhenatherum elatius 235.jpg |image_caption = tall oatgrass (Arrhenatherum elatius) |regnum = Plantae |unranked_divisio = Angiosperms |unranked_classis = Monocots |unranked_ordo = Commelinids |ordo = Poales |familia = Poaceae |tribus = Poeae |subtribus = Aveninae |genus = Arrhenatherum |genus_authority = P.Beauv. |type_species_authority=P.Beauv. ex Boiss.[1][2] |type_species=Arrhenatherum avenaceum |name=oatgrass button-grass |synonyms_ref=[3] |synonyms=
|}}Arrhenatherum, commonly called oatgrass or button-grass, is a genus of Eurasian and North African plants in grass family.[3][4][5][6] DescriptionWild forms can resemble wild oat (Avena) or fescue (Festuca). Oatgrasses are very common perennials with yellowish roots. The shining stems grow to a height of 1.5 meters, but die off in winter. The leaves are hairless with blunt ligules. The inflorescence is a panicle with two-flowered bisexual spikelets.[7]
numerous species now considered better suited to other genera: Avenula Danthoniastrum Duthiea Helictochloa Helictotrichon Sphenopholis See also
References1. ^lectotype designated by L.K. Pfeiffer, Nom. 1: 274 (1872) {{Taxonbar|from=Q157689}}2. ^Tropicos, Arrhenatherum P. Beauv. 3. ^{{cite web|url= http://delta-intkey.com/grass/www/arrhenat.htm|title=The Grass Genera of the World: Arrhenatherum |accessdate=2009-08-19 |author=Watson L, Dallwitz MJ. |year=2008 |work=The Grass Genera of the World }} 4. ^[https://www.biodiversitylibrary.org/page/394134#page/139/mode/1up Palisot de Beauvois, Ambroise Marie François Joseph. 1812. Essai d'une Nouvelle Agrostographie 55-56] descriptions in Latin, commentary in French 5. ^[https://www.biodiversitylibrary.org/page/394134#page/294/mode/1up Palisot de Beauvois, Ambroise Marie François Joseph. 1812. Essai d'une Nouvelle Agrostographie plate XI (11), figure V (5) at lower left] line drawings of Arrhenatherum avenaceum 6. ^Altervista Flora Italiana genere Arrhenatherum 7. ^Valdes, B. & H. Scholz. 2006. The Euro+Med treatment of Gramineae - a generic synopsis and some new names. Willdenowia 36(2): 657–669 8. ^The Plant List search for Arrhenatherum 9. ^Flora of China Vol. 22 Page 322 燕麦草属 yan mai cao shu Arrhenatherum P. Beauvois 10. ^Atlas of Living Australia, Oatgrass, Arrhenatherum elatius (L.) P.Beauv. ex J.Presl & C.Presl 11. ^Biota of North America Program 2013 county distribution map 12. ^Rosengurtt, B., B. R. A. Maffei & P. I. Artucio. 1970. Gramíneas Uruguayas [i–vii], 1–489. Universidad de la República, Montevideo 13. ^1 2 {{cite web|url=http://apps.kew.org/wcsp/namedetail.do?name_id=451084|title=World Checklist of Selected Plant Families: Royal Botanic Gardens, Kew|publisher=}} 3 : Pooideae|Poaceae genera|Taxa named by Palisot de Beauvois |
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