Page authors: Don Knoke, David Giblin
Bromus sitchensis
Alaska brome, Sitka brome
WTU specimens
Other herbaria
WTU images

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

Conservation Status: Not of concern

Description:
General:

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

Leaves:

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.

Inflorescences:

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;

Florets:

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)
Infraspecies:
var. aleutensis – Aleut brome
var. carinatus – California brome    British Columbia south to Mexico, east to Rocky Mountains.
var. marginatus – large mountain brome
var. polyanthus – smooth brome
var. sitchensis – Sitka 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.

40 photographs:
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