Distribution: Occurring east of the Cascade crest in Washington; Washington to California, east to the Rocky Mountains.
Habitat: Meadows and moist, open slopes from the foothills to moderate elevations in the mountains.
Flowers: April-June
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bumblebees, bees
Low, scapose, herbaceous perennial from a taproot and a few slender rhizomes
Leaf blades oblanceolate to ovate, up to 7 cm. long and 2 cm. wide, equaling the petiole, usually glabrous except for the hairy margins.
Peduncles single-flowered, 1-5, shorter than the leaves; calyx cleft to near the base; corolla white with purple veining, saucer-shaped, 1.5-3 cm. wide, the 5 glabrous lobes 2-4 times as long as the internally-hairy tube; stamens 5, the filaments attached alternate with the lobes; style 2-parted.
Capsule 1-celled, many-seeded.
PNW Herbaria: Specimen records of Hesperochiron pumilus in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Hesperochiron pumilus checklist entry
OregonFlora: Hesperochiron pumilus information
E-Flora BC: Hesperochiron pumilus atlas page
CalPhotos: Hesperochiron pumilus photos