Aira praecox

Taxobox
name = "Aira praecox"

---

image_width = 260px
regnum = Plantae
divisio = Magnoliophyta
classis = Liliopsida
ordo = Poales
familia = Poaceae
subfamilia = Pooideae
genus = "Aira"
species = "A. praecox"
binomial = "Aira praecox"
binomial_authority = L.
synonyms = "Aspris praecox"

"Aira praecox" is a species of grass known by several common names, including yellow hairgrass and spike hairgrass. It is native to Europe. It also grows in North America as an introduced species, where it can be found on the east and west coasts in sandy or rocky areas, such as beaches and roadsides. This is a tuft-forming annual grass growing up to about 25 centimeters in maximum height. The thin, narrow leaves are located at the base of the stem. It bears very small inflorescences of purple-tinted green bisexual spikelets.

It is an annual, forming low and small but numerous tufts. It flowers from April to June.

External links

* [http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?8738,8788,8791 Jepson Manual Treatment]
* [http://plants.usda.gov/java/profile?symbol=AIPR USDA Plants Profile]
* [http://herbarium.usu.edu/webmanual/info2.asp?name=Aira_praecox&type=treatment Grass Manual Treatment]
* [http://www.plant-identification.co.uk/skye/gramineae/aira-praecox.htm Skye Flora]