Aristida
thumb|right|Aristida stricta|Pineland three-awn (A. stricta) flowers thumb|Aristida hystrix L. f. inflorescence Aristida is a very nearly cosmopolitan genus of plants in the grass family. Aristida is distinguished by having three awns (bristles) on each lemma of each floret. The genus includes about 300 species found worldwide, often in arid warm regions. This genus is among those colloquially called three-awns wiregrasses, speargrasses and needlegrasses. The name Aristida is derived from the Latin "arista", meaning "awn".
Species
Purple Threeawn
GENUS
- KingdomPlantae
- PhylumTracheophyta
- ClassLiliopsida
- OrderPoales
- FamilyPoaceae
Native toAfghanistan, Alabama, Alberta, Algeria, Andaman Is., Angola, Argentina Northeast, Argentina Northwest, Argentina South, Arizona, Arkansas, Aruba
Observations7,722
三芒草属（学名：Aristida）是禾本科下的一个属，为一年生或多年生草本植物。该属共有约15O种，分布于温带和热带地区。[1] 参考文献 ^ 中国种子植物科属词典. 中国数字植物标本馆. （原始内容存档于2012-04-11）. 外部链接 維基物種中有關三芒草属的數據 这是一篇與植物相關的小作品。你可以通过编辑或修订扩充其内容。 查 论 编 取自“https://zh.wikipedia.org/w/index.php?title=三芒草属&oldid=45480026” 分类： 禾本科 三芒草属 卡尔·林奈命名的生物分类 隐藏分类： 本地相关图片与维基数据不同 WikispeciesLatinName 全部小作品 植物小作品
via GBIF · Kew POWO
Wikidata facts
- Image
- Aristida purpurea close.jpg
~2 min read
Article
4 sectionsContents
- Description
- Species
- See also
- References
thumb|right|Aristida stricta|Pineland three-awn (A. stricta) flowers thumb|Aristida hystrix L. f. inflorescence Aristida is a very nearly cosmopolitan genus of plants in the grass family. Aristida is distinguished by having three awns (bristles) on each lemma of each floret. The genus includes about 300 species found worldwide, often in arid warm regions. This genus is among those colloquially called three-awns wiregrasses, speargrasses and needlegrasses. The name Aristida is derived from the Latin "arista", meaning "awn".
They are characteristic of semiarid grassland. The Wiregrass Region of North America is named for A. stricta. Other locales where this genus is an important component of the ecosystem include the Carolina Bays, the sandhills of the Carolinas, and elsewhere, Mulga scrub in Australia, and the xeric grasslands around Lake Turkana in Africa. Local increases in the abundance of wiregrasses is a good indicator of overgrazing, as livestock avoid them.