Page author: Don Knoke
Pseudoroegneria spicata
?bluebunch wheatgrass

Distribution: British Columbia south, chiefly east of the Cascade crests, but also in the coastal mountains, to California, east to the Dakotas and New Mexico.

Habitat: From the plains to mid-elevations in the mountains.

Flowers: June - August

Origin: Native

Conservation Status: Not of concern


Tufted perennial, the culms hollow, erect, usually glabrous, 4-10 dm. tall, often forming clumps 1.5 dm. broad.


Sheaths open, usually glabrous; auricles well-developed; ligules scarcely 1 mm. long; blades usually flat, 1.5-3 mm. broad, usually glabrous on the back and puberulent on the front; leaves numerous.


Inflorescence a loose, open spike 8-15 cm. long; spikelets usually 1 per node, from slightly longer to shorter than the internode, 6- to 8-flowered; glumes 7-9 mm. long, narrowly oblong, 4-5 nerved, sometimes awn-tipped; lemmas 8-11 mm. long, awnless, or with a divergent awn up to 2 cm. long; paleas rounded, slightly exceeding the lemma; anthers purplish.

Accepted Name:
Pseudoroegneria spicata (Pursh) Á. Löve
Publication: Taxon 29(1): 168. 1980.

Synonyms & Misapplications:
Agropyron inerme (Scribn. & J.G. Sm.) Rydb.
Agropyron spicatum (Pursh) Scribn. & J.G. Sm. [HC]
Agropyron spicatum (Pursh) Scribn. & J.G. Sm. var. inerme (Scribn. & J.G. Sm.) A. Heller
Agropyron spicatum (Pursh) Scribn. & J.G. Sm. var. pubescens Elmer [HC]
Agropyron spicatum (Pursh) Scribn. & J.G. Sm. var. spicatum [HC]
Agropyron vaseyi Scribn. & J.G. Sm.
Elymus spicatus (Pursh) Gould
Elytrigia spicata (Pursh) D.R. Dewey
Pseudoroegneria spicata (Pursh) Á. Löve ssp. inermis (Scribn. & J.G. Sm.) Á. Löve
Pseudoroegneria spicata (Pursh) Á. Löve ssp. spicata
Roegneria spicata (Pursh) Beetle
Additional Resources:

PNW Herbaria: Specimen records of Pseudoroegneria spicata in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Pseudoroegneria spicata checklist entry.

E-Flora BC: Pseudoroegneria spicata atlas page.

CalPhotos: Pseudoroegneria spicata photos.

USDA Plants: Pseudoroegneria spicata information.

47 photographs:
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