Page author: David Giblin
Erythranthe floribunda
purple-stem monkey-flower

Distribution: Occurring east of the Cascades crest and west into the Columbia River Gorge in Washington; southern British Columbia to Mexico, east to the Rocky Mountains.

Habitat: Moist open places at moderate elevations in the mountains.

Flowers: May-October

Origin: Native

Growth Duration: Annual

Conservation Status: Not of concern


Erect to nearly prostrate annual, the stem usually branched, 0.5-2.5 dm. tall; herbage more or less glandular and pubescent, tending to be slimy as well.


Leaves opposite, deltoid-ovate to sub-cordate, dentate or denticulate, sub-palmate or nearly pinnately veined, the blade 1-3 cm. long, the petiole shorter.


Flowers solitary in the leaf axils on long pedicels; calyx 4-8 mm. long, the 5 acute, equal teeth less than 2 mm. long; corolla yellow with some red dots, 6-14 mm. long, only slightly bilabiate, the lips about equal and only slightly flaring, the throat with pubescence on the lower side; stamens 4.



Accepted Name:
Erythranthe floribunda (Douglas ex Lindl.) G.L. Nesom
Publication: Phytoneuron 2012-39: 1–60. 2012.

Synonyms & Misapplications:
Mimulus deltoides Gand.
Mimulus floribundus Lindl. [HC]
Mimulus floribundus Lindl. var. membranaceus (A. Nelson) A.L. Grant [HC]
Mimulus membranaceus A. Nelson
Mimulus peduncularis Douglas ex Benth.
Mimulus peduncularis A. Gray
Mimulus pubescens Benth.
Mimulus serotinus Suksd.
Additional Resources:

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

WA Flora Checklist: Erythranthe floribunda checklist entry

OregonFlora: Erythranthe floribunda information

E-Flora BC: Erythranthe floribunda atlas page

CalPhotos: Erythranthe floribunda photos

37 photographs:
Group by