Agrostis exarata Trin.
Spike bentgrass, Spiked bent, Spike red top
Poaceae (Grass Family)
Synonym(s): Agrostis aenea, Agrostis alaskana, Agrostis ampla, Agrostis asperifolia, Agrostis exarata ssp. minor, Agrostis exarata var. minor, Agrostis exarata var. monolepis, Agrostis exarata var. pacifica, Agrostis exarata var. purpurascens, Agrostis longiligula, Agrostis longiligula var. australis, Agrostis melaleuca, Agrostis microphylla var. major
USDA Symbol: agex
A tufted grass from 1-4 ft. tall. Culms may be slender to relatively stout and are topped with a seedhead that is usually dense and spikelike but sometimes interrupted and somewhat open. The branches are always strongly erect and green to purplish.
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Plant CharacteristicsDuration: Perennial
Size Class: 3-6 ft.
Bloom InformationBloom Color: Yellow
Bloom Time: Apr , May
DistributionUSA: AK , AZ , CA , CO , ID , KY , MT , NE , NM , NV , OK , OR , SD , TX , UT , VT , WA , WY
Canada: AB , BC , SK
Native Distribution: AK to CA, e. to Alt., TX & Mex.; also locally to the Dakotas & NE
Native Habitat: Moist meadows; canyons
Growing ConditionsWater Use: Medium
Light Requirement: Part Shade
Soil Moisture: Moist
CaCO3 Tolerance: Low
Soil Description: Various moist soils.
Conditions Comments: Not Available
BenefitUse Food: Seeds harvested for food by indigenous peoples.
Larval Host: The Grass Family is an essential larval food for most branded skippers and most of the satyrs.
Find Seed or Plants
Find seed sources for this species at the Native Seed Network.
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Native Seed Network - Corvallis, OR
BibliographyBibref 1218 - Tending the Wild: Native American Knowledge and the Management of California's Natural Resources (2006) Anderson, M. Kat
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Recommended Species Lists
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Additional resourcesUSDA: Find Agrostis exarata in USDA Plants
FNA: Find Agrostis exarata in the Flora of North America (if available)
Google: Search Google for Agrostis exarata
MetadataRecord Modified: 2008-10-20
Research By: TWC Staff