Page authors: Don Knoke, David Giblin
Triphysaria pusilla
dwarf owl-clover

Distribution: Occurring west of the Cascades crest and east in the Columbia River Gorge in Washington; southwestern British Columbia to California.

Habitat: Vernally moist, open ground at low elevations.

Flowers: April-June

Origin: Native

Growth Duration: Annual

Conservation Status: Not of concern


Slender annual, the stem usually branched from the base, 4-20 cm. tall; herbage with coarse, spreading pubescence.


Leaves alternate, all cauline, pinnatafid, with slender rachis and filiform lateral segments, 0.5-3 cm. long.


Inflorescence an elongate spike, often extending to near the base of the stem, lower flowers becoming remote; bracts similar to the leaves, but often more dissected; calyx sub-equally 4-lobed; corolla 4-6 mm. long, red-purple or occasionally yellow, the tube long and narrow, bilabiate, the upper lip hooded and somewhat hooked at the tip, enclosing the 4 stamens; lower lip shorter than the upper lip, with 3 inflated lobes; stigma entire, with a tuft of hairs.



Accepted Name:
Triphysaria pusilla (Benth.) T.I. Chuang & Heckard
Publication: Syst. Bot. 16(4): 661. 1991.

Synonyms & Misapplications:
Orthocarpus pusillus Benth. [HC]
Additional Resources:

PNW Herbaria: Specimen records of Triphysaria pusilla in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Triphysaria pusilla checklist entry.

E-Flora BC: Triphysaria pusilla atlas page.

CalPhotos: Triphysaria pusilla photos.

USDA Plants: Triphysaria pusilla information.

15 photographs:
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