Achnatherum occidentale

Taxobox
name = "Achnatherum occidentale"

---

image_width = 170px
regnum = Plantae
divisio = Magnoliophyta
classis = Magnoliopsida
ordo = Poales
familia = Poaceae
genus = "Achnatherum"
species = "A. occidentale"
binomial = "Achnatherum occidentale"
binomial_authority = (Thurb.) Barkworth

"Achnatherum occidentale" is a species of grass known by the common name western needlegrass. It is native to western North America from British Columbia to California to Colorado, where it grows in many types of habitat. This is a tufting perennial grass forming tight clumps of erect stems up to about 120 centimeters in maximum height, but sometimes much shorter. The hairlike leaves are less than a millimeter wide and may have rolled edges. The inflorescence is up to 30 centimeters long, with each hairy spikelet bearing an awn up to 4 or 5 centimeters long. The awn is kinked twice.

External links

* [http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?8738,8739,8750 Jepson Manual Treatment]
* [http://plants.usda.gov/java/profile?symbol=ACOC3 USDA Plants Profile]
* [http://herbarium.usu.edu/webmanual/info2.asp?name=Achnatherum_occidentale&type=treatment Grass Manual Treatment]
* [http://calphotos.berkeley.edu/cgi/img_query?query_src=photos_index&where-taxon=Achnatherum+occidentale Photo gallery]