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
Pollination: Bumblebees, bees, flies, moths
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.
Capsule.
PNW Herbaria: Specimen records of Triphysaria pusilla in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Triphysaria pusilla checklist entry
OregonFlora: Triphysaria pusilla information
E-Flora BC: Triphysaria pusilla atlas page
CalPhotos: Triphysaria pusilla photos