Page author: Don Knoke
Bromus sitchensis
Alaska brome
WTU specimens
Other herbaria

Distribution: Along or near the coast from Alaska south to northwest Oregon.

Habitat: Meadowland to subalpine streambanks and talus slopes.

Flowers: June - September

Origin: Native

Conservation Status: Not of concern


Perennial, the culms 5-15 dm. tall, without rhizomes.


: Sheaths closed, glabrous or with soft hairs; ligules 2-8 mm. long, glabrous and pale; blades flat, thin, 8-15 mm. broad, the veins very narrow.


: Inflorescence a large, open panicle 10-35 cm. long, the branches erect to drooping, with only 1-2 spikelets near the tips; spikelets 2-4 cm. long, compressed, tapered from near the base, closely 4- to 8-flowered; glumes keeled, the first 8-10 mm. long, the second 2-3 mm. longer; lemmas keeled, shallowly bidentate, the awn attached between the teeth 7-12 mm. long, straight; anthers 3, usually included.

Accepted Name:
Bromus sitchensis Trin.
Publication: Mém. Acad. Imp. Sci. St.-Pétersbourg, Sér. 6, Sci. Math. 2(2): 173. 1832.

Synonyms & Misapplications:
(none provided)
var. aleutensis – Alaska brome
var. carinatus – Alaska brome    British Columbia south to Mexico, east to Rocky Mountains.
var. marginatus – Alaska brome
var. polyanthus – Alaska brome
var. sitchensis – Alaska brome
Additional Resources:

PNW Herbaria: Specimen records of Bromus sitchensis in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Bromus sitchensis checklist entry.

E-Flora BC: Bromus sitchensis atlas page.

CalPhotos: Bromus sitchensis photos.

USDA Plants: Bromus sitchensis information.

37 photographs:
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