Page authors: Don Knoke, David Giblin
Bromus sterilis
poverty brome

Distribution: Southern British Columbia south to California, and in the Rocky Mountains and eastern United States.

Habitat: Roadsides and waste places.

Flowers: May - July

Origin: Introduced

Growth Duration: Annual

Conservation Status: Not of concern


Annual, the culm 5-10 dm. tall, usually soft-pubescent throughout.


Sheaths closed; ligules 2-3 mm. long, lacerate; blades flat, 2-3 mm. broad.


Inflorescence a narrow panicle 8-12 cm. long, the branches shorter than the spikelets, strictly erect; spikelets 5- to 7-flowered, 2-2.5 mm. long; first glume 1-nerved, 7-10 mm. long, the second 3-nerved, 2-3 mm. longer; lemmas about 13 mm. long, obtuse, only slightly bifid, the awn up to 30 mm. long; anthers exerted; ovary strongly hairy on the upper half.

Accepted Name:
Bromus sterilis L.
Publication: Sp. Pl. 1: 77. 1753.

Synonyms & Misapplications:
Anisantha sterilis (L.) Nevski
Additional Resources:

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

WA Flora Checklist: Bromus sterilis checklist entry.

E-Flora BC: Bromus sterilis atlas page.

CalPhotos: Bromus sterilis photos.

USDA Plants: Bromus sterilis information.

11 photographs:
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