Page author: Don Knoke
Festuca idahoensis
bluebunch fescue
WTU specimens
Other herbaria

Distribution: British Columbia south to Sierran California, east to Alberta and Colorado.

Habitat: Grasslands and sagebrush desert to dry and rock mountain slopes, occasionally to 12,000 feet in elevation.

Flowers: Late May - July

Origin: Native

Conservation Status: Not of concern

Description:
General:

Strongly tufted perennial, usually glabrous, the hollow culms 4-10 dm. tall.

Leaves:

Sheaths open, usually glabrous; ligules 0.3-0.6 mm. long, highest on the sides; blades mostly basal, filiform, folded-involute, up to 10 cm. long.

Flowers:

Inflorescence a narrow panicle 7-15 cm. long, the branches erect to ascending; spikelets 5- to 7-flowered; first glume narrowly lanceolate, about 3.5 mm. long, 1-nerved; second glume oblong-lanceolate, about 5 mm. long, 3-nerved; lemmas rounded, about 6.5 mm. long, with a stout awn 2-5 mm. long; palea equal to the lemma.

Accepted Name:
Festuca idahoensis Elmer
Publication: Bot. Gaz. 36(1): 53. 1903.

Synonyms:
Festuca idahoensis Elmer var. oregona (Hack. ex Beal) C.L. Hitchc.
Festuca ingrata (Hack. ex Beal) Rydb.
Festuca occidentalis Hook. var. ingrata (Hack. ex Beal) Boivin
Festuca occidentalis Hook. var. oregona (Hack.) Boivin
Festuca ovina L. var. columbiana Beal
Festuca ovina L. var. ingrata Hack. ex Beal
Festuca ovina L. var. oregona Hack. ex Beal
Additional Resources:

PNW Herbaria: Specimen records of Festuca idahoensis in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Festuca idahoensis checklist entry.

E-Flora BC: Festuca idahoensis atlas page.

CalPhotos: Festuca idahoensis photos.

USDA Plants: Festuca idahoensis information.

30 photographs:
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