Page author: David Giblin
Erythranthe breweri
Brewer's monkey-flower

Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to Montana, Wyoming, and Utah.

Habitat: Dry to moist open woods and meadows from middle elevations in the mountains to the subalpine.

Flowers: June-August

Origin: Native

Growth Duration: Annual

Conservation Status: Not of concern


Slender annual, the stem simple or sparingly branched, up to 15 cm. tall, purplish tinged and covered with stalked glands.


Leaves opposite, linear to linear-oblanceolate, 1-2 cm. long and 1-4 mm. wide.


Flowers solitary in the leaf axils, the pedicels usually longer than the calyx; calyx 5-lobed, 5-angled, the lobes short with prominent mid-veins; corolla light purple to nearly red, slightly bilabiate, 5-10 mm. long and up to 2 mm. wide; stamens 4.



Accepted Name:
Erythranthe breweri (Greene) G.L. Nesom & N.S. Fraga
Publication: Phytoneuron 2012-39: 1–60. 2012.

Synonyms & Misapplications:
Mimulus breweri (Greene) Coville [HC, JPM]
Mimulus rubellus A. Gray var. breweri (Greene) Jeps.
Additional Resources:

PNW Herbaria: Specimen records of Erythranthe breweri in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Erythranthe breweri checklist entry.

E-Flora BC: Erythranthe breweri atlas page.

CalPhotos: Erythranthe breweri photos.

USDA Plants: Erythranthe breweri information.

32 photographs:
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