Distribution: Occurring west of the Cascades crest and east in the Columbia River Gorge in Washington; British Columbia to California.
Habitat: Prairies, grassy slopes and vernally moist areas, sea level to subalpine.
Flowers: March-July
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bees, flies, beetles, wasps
Pubescent perennial from a rhizome, the leafless flowering stems mostly single, 1-3 dm. tall.
Leaves all basal, the blades 2-5 cm. long, narrowly rhombic to rhombic-ovate, narrowed gradually to broad petioles rarely as long, with prominent marginal hairs and rusty-woolly on the lower surface.
Inflorescence thyrsoid, (15-)20+-flowered, open to ± congested, conic (usually branched) subtended by a leafy, rusty-woolly bract; calyx broadly conic, the 5 lobes oblong-lanceolate, 1-2 mm. long, reflexed; petals 5, white, obovate, 1.5-3 mm. long, at least half as broad as long; stamens 10, short, awl-shaped.
Ovary about inferior in fruit; mature follicles 2, 3.5-5 mm. long, often reddish or purplish.
PNW Herbaria: Specimen records of Micranthes integrifolia in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Micranthes integrifolia checklist entry
OregonFlora: Micranthes integrifolia information
E-Flora BC: Micranthes integrifolia atlas page
CalPhotos: Micranthes integrifolia photos