Agrostis exarata

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Agrostis exarata
Agrostis exarata.jpg
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
(unranked): Commelinids
Order: Poales
Family: Poaceae
Subfamily: Pooideae
Genus: Agrostis
Species: A. exarata
Binomial name
Agrostis exarata

Agrostis aenea
Agrostis alaskana
Agrostis ampla
Agrostis asperifolia
Agrostis longiligula
Agrostis melaleuca

Agrostis exarata is a species of grass known by the common names spike bentgrass,[1] spike bent,[2] Pacific bentgrass, and spike redtop. It is native to western North America from Texas[1] to the Aleutian Islands.


This is a common perennial grass reaching one to three feet in height with long, thin, flat leaves each with a ligule of 2–4 millimetres (0.079–0.157 in). The tuft inflorescence may be up to 30 centimetres (12 in) long and is usually dense with tiny spikelets.[3] It reproduces mainly by seed, but it can also spread via rhizome. This bunchgrass occurs in many plant communities in varied climates. It is considered good forage for livestock.


  1. ^ a b "Spike bentgrass". USDA. Plants Profile. Retrieved October 6, 2007. 
  2. ^ "BSBI List 2007". Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-01-25. Retrieved 2014-10-17. 
  3. ^ Jepson Manual Treatment

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