Home/Species/ Little Mountain Bluegrass

Poa curtifolia

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Little Mountain Bluegrass

G2Imperiled Found in 2 roadless areas NatureServe Explorer →

G2ImperiledGlobal Rank

UnknownThreat Impact

Identity

Unique IDELEMENT_GLOBAL.2.157207

Element CodePMPOA4Z0N0

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryVascular Plant

Endemicendemic to a single state or province

KingdomPlantae

PhylumAnthophyta

ClassMonocotyledoneae

OrderCyperales

FamilyPoaceae

GenusPoa

Other Common Names

little mountain bluegrass (EN)

Concept Reference

Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.

Conservation Status

Rank Method Rank calculation - Biotics v2

Review Date2024-03-26

Change Date2024-03-26

Edition Date2024-03-26

Edition AuthorsBeckman, J. (7/96),J. Arnett and L. Oliver (rev. 2006), rev. Eberly and Wessel (2024)

Threat ImpactUnknown

Range Extent100-250 square km (about 40-100 square miles)

Number of Occurrences6 - 20

Rank Reasons

Poa curtifolia is a perennial grass that is endemic to Washington, USA, and known from around 10 occurrences in two counties where it is largely restricted to serpentine substrates. Mining is a potential threat.

Range Extent Comments

Poa curtifolia occurs in the western United States where it is endemic to Washington and known from the Wenatchee Mountains in Chelan and Kittitas Counties (Washington Natural Heritage 1981).

Threat Impact Comments

Mining is a potential threat (Washington Natural Heritage 1981).

Ecology & Habitat

Habitat

This species grows on ultramafic (serpentine) outcrops from 1500-2150 meters (Washington Natural Heritage 1981).

Terrestrial Habitats

BarrensBare rock/talus/scree

Other Nations (1)

United StatesN2

Province	Rank	Native
Washington	S2	Yes

Threat Assessments

Threat	Scope	Severity	Timing
3 - Energy production & mining	Unknown	Unknown	Unknown
3.2 - Mining & quarrying	Unknown	Unknown	Unknown

Plant Characteristics

DurationPERENNIAL

Economic Value (Genus)No

Roadless Areas (2)

Washington (2)

Area	Forest	Acres
Alpine Lakes Adj.	Wenatchee National Forest	57,104
Teanaway	Wenatchee National Forest	72,849

References (3)

Flora of North America Editorial Committee (FNA). 2007a. Flora of North America north of Mexico. Vol. 24. Magnoliophyta: Commelinidae (in part): Poaceae, part 1. Oxford Univ. Press, New York. xxviii + 911 pp.
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Washington Natural Heritage Program. 1981. An illustrated guide to the endangered, threatened and sensitive vascular plants of Washington. Washington Natural Heritage Program, Olympia. 328 pp.

Poa curtifolia

Habitat

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