Page author: David Giblin
Erythranthe dentata
coastal monkey-flower, tooth-leaved monkey-flower

Distribution: Occurring west of the Cascades crest in Washington; southwestern British Columbia to northern California.

Habitat: Stream banks and other moist places to wet places from the lowlands to middle elevations in the mountains.

Flowers: May-September

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern


Perennial from well-developed, shallow rhizomes, the stems ascending or loosely erect, 1-4 dm. tall, the herbage with stiff, white hairs.


Leaves opposite, serrate, pinnately veined, but the principle lateral veins arising below the middle; leaf blades lance-elliptic to ovate, acute, the lower short-petiolate, the upper sessile, 2-7 cm. long and 1-3.5 cm. wide.


Flowers few, solitary in the leaf axils, on long pedicels; calyx 8-16 mm. long, 5-angled with spreading hairs along the ribs, the 5 teeth acute, 2-5 mm. long; corolla 2.5-4 cm. long, bilabiate, yellow, the long, strongly-flaring throat often red-dotted, the 5 well-developed lobes sometimes washed with reddish-purple; stamens 4.



Accepted Name:
Erythranthe dentata (Nutt. ex Benth.) G.L. Nesom
Publication: Phytoneuron 2012-39: 1–60. 2012.

Synonyms & Misapplications:
Mimulus dentatus Nutt. ex Benth. [HC]
Additional Resources:

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

WA Flora Checklist: Erythranthe dentata checklist entry

OregonFlora: Erythranthe dentata information

E-Flora BC: Erythranthe dentata atlas page

CalPhotos: Erythranthe dentata photos

17 photographs:
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