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Achnatherum nelsonii ssp. dorei

Achnatherum nelsonii (Scribn.) Barkworth ssp. dorei (Barkworth & Maze) Barkworth

Columbia Needlegrass, Dore's Needlegrass

Poaceae (Grass Family)

Synonym(s): Achnatherum nelsonii var. dorei, Stipa columbiana, Stipa minor, Stipa nelsonii ssp. dorei, Stipa nelsonii var. dorei, Stipa occidentalis var. minor


USDA Native Status: L48 (N), CAN (N)

The culms of this cool-season, perennial bunchgrass rise 1-3 ft., slightly taller than the leaves. The seedhead is narrow, dense and purplish. The spikelets bear a distinctive awn extending far beyond the grain.


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Plant Characteristics

Duration: Perennial
Habit: Grass/Grass-like
Leaf: Green
Size Class: 1-3 ft.

Bloom Information

Bloom Color: Yellow
Bloom Time: Jun , Jul


USA: AZ , CA , CO , ID , MT , OR , TX , WA , WY
Canada: BC
Native Distribution: Black Hills to the Yukon, s. to w. TX & CA
Native Habitat: Dry plains, meadows & open woods at medium to high elevations

Growing Conditions

Water Use: Low
Light Requirement: Sun
CaCO3 Tolerance: Medium
Soil Description: Well-drained soils.
Conditions Comments: Columbia needlegrass is drought tolerant and useful for revegetating rangelands at higher elevations.


Description: Sow seed.
Seed Collection: Not Available
Seed Treatment: No treatment necessary.
Commercially Avail: yes

Additional resources

USDA: Find Achnatherum nelsonii ssp. dorei in USDA Plants
FNA: Find Achnatherum nelsonii ssp. dorei in the Flora of North America (if available)
Google: Search Google for Achnatherum nelsonii ssp. dorei


Record Modified: 2007-01-01
Research By: TWC Staff

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