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.
Publication: Mém. Acad. Imp. Sci. St.-Pétersbourg, Sér. 6, Sci. Math. 2(2): 173. 1832. 1832.
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var. aleutensis – Aleut brome
Occurring west of the Cascades crest in northwestern Washington; Alaska to northwestern Washington. -
var. carinatus – California brome British Columbia south to Mexico, east to Rocky Mountains.
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var. marginatus – large mountain brome Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
- var. polyanthus – smooth brome Occurring east of the Cascades crest in Washington; British Columbia to California, but not in Oregon, east to the Rocky Mountains and Texas.
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var. sitchensis – Sitka brome
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
