Home/Species/ Sierra Bluegrass

Poa sierrae

J.T. Howell

Sierra Bluegrass

G3Vulnerable Found in 2 roadless areas NatureServe Explorer →

G3VulnerableGlobal Rank

MediumThreat Impact

Identity

Unique IDELEMENT_GLOBAL.2.156613

Element CodePMPOA4Z310

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryVascular Plant

Endemicendemic to a single state or province

KingdomPlantae

PhylumAnthophyta

ClassMonocotyledoneae

OrderCyperales

FamilyPoaceae

GenusPoa

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 MethodLegacy Rank calculation - Excel v3.1x

Review Date2015-06-10

Change Date2015-06-10

Edition Date2017-06-07

Edition AuthorsAnnable, C, rev. Bittman (2015), rev. Treher (2017)

Threat ImpactMedium

Range Extent1000-5000 square km (about 400-2000 square miles)

Number of Occurrences21 - 80

Rank Reasons

Endemic to California with about 35-40 occurrences in the Sierra Nevada, Cascade Range, and central Sierra Nevada.

Range Extent Comments

Endemic to California and occurring in the Sierra Nevada, Cascade Range, and central Sierra Nevada.

Threat Impact Comments

Threats incude road or trail maintenance, and erosion and potentially cattle grazing, mining or off-highway vehicle activity, and vegetation succession. These activities and others may alter the microclimate in the forest understory.

Ecology & Habitat

Habitat

Shady moist slopes, often on mossy rocks, in canyons, forests; 350-1500 m.

Reproduction

Only reproduces sexually (Soreng 2000).

Terrestrial Habitats

Forest/WoodlandBare rock/talus/scree

Other Nations (1)

United StatesN3

Province	Rank	Native
California	S3	Yes

Plant Characteristics

Economic Value (Genus)No

Roadless Areas (2)

California (2)

Area	Forest	Acres
Bald Rock	Plumas National Forest	4,675
North Fork Middle Fork American River	Tahoe National Forest	11,245

References (3)

Hickman, J. C., ed. 1993. The Jepson manual: Higher plants of California. University of California Press, Berkeley, CA. 1400 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.
Soreng, R. 2000. "Apomixis and amphimixis comparative biogeography: a study in Poa (Poaceae)." In Grasses: Systematics and Evolution, edited by S.W.L. Jacobs and J. Everett, 294-306. Collingwood, VIC, Australia: Csiro Publishing.