Page authors: Don Knoke, David Giblin
Bromus sitchensis
Alaska brome, Sitka brome

Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Great Plains

Habitat: Dry to moist open areas from lowlands to subalpine.

Flowers: May-August

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Wind


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.


Large, open panicle 10-35 cm. long, the branches erect to drooping, with only 1-2 spikelets near the tips.


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. 1832.

Synonyms & Misapplications:
(none provided)
Additional Resources:

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

WA Flora Checklist: Bromus sitchensis checklist entry

OregonFlora: Bromus sitchensis information

E-Flora BC: Bromus sitchensis atlas page

CalPhotos: Bromus sitchensis photos

49 photographs:
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