| 词条 | Aristida adscensionis |
| 释义 |
|name = Aristida adscensionis |image = Aristidaadscensionis1.jpg |regnum = Plantae |unranked_divisio = Angiosperms |unranked_classis = Monocots |unranked_ordo = Commelinids |ordo = Poales |familia = Poaceae |subfamilia = Arundinoideae |genus = Aristida |species = A. adscensionis |binomial = Aristida adscensionis |binomial_authority = L. |synonyms = Aristida fasciculata }} Aristida adscensionis is a species of grass known by the common name sixweeks threeawn. It is native to the Americas but it is distributed nearly worldwide. It grows easily in disturbed and waste areas and has potential to become a weed. DescriptionThis annual bunchgrass is quite variable in appearance, its size and shape determined largely by environmental conditions. It grows in a tuft to heights between 5 and 80 centimeters. It forms a narrow inflorescence of spikelets, each fruit with three awns. External links
8 : Aristida|Bunchgrasses of North America|Native grasses of California|Flora of the California desert regions|North American desert flora|Grasses of the United States|Flora of the Southwestern United States|Plants described in 1753 |
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