Page author: Don Knoke
Poa confinis
coastline blue grass

Distribution: VAncouver Island, British Columbia, south along the coast to San Francisco, California.

Habitat: Coastal sand dunes.

Flowers: May - June

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern


Strongly rhizomatous, dioecious perennial, mostly glabrous, the culms 10-35 cm. tall with a decumbent base.


Leaves basally tufted, the sheaths open for over half their length, the blades involute, reaching to the panicles, scarcely 2 mm. broad, the tips only slightly prow-like; ligules membranous, acute, 0.8-2 mm. long, entire, pubescent.


Inflorescence a compact panicle, 1.5-3.5 cm. long, the branches erect, tawny to purplish; spikelets 3-4 flowers, the rachilla usually with a terminal rudiment; glumes 3-nerved, about equal in width, the first 2.5-3 mm. long, the second 3-4 mm. long; lemmas strongly keeled, faintly 5-nerved, glabrous, unawned.



Accepted Name:
Poa confinis Vasey
Publication: U.S.D.A. Div. Bot. Bull. 13(2): pl. 75. 1893.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Poa confinis in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Poa confinis checklist entry.

E-Flora BC: Poa confinis atlas page.

CalPhotos: Poa confinis photos.

USDA Plants: Poa confinis information.

5 photographs:
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