Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to Baja California, east to Montana, Wyoming and Utah.
Habitat: Ponderosa pine forest openings to alpine slopes.
Growth Duration: Perennial
Conservation Status: Not of concern
Annual to perennial, glabrous, fleshy herbs from a much-branched, thickened crown, the branches often numerous, spreading, forming mats up to 15 cm. broad
Leaves all basal, glabrous, tufted, forming rosettes, obovate-spatulate to oblanceolate, broadly petiolate, 1.5-5 cm. long.
Flowers in heads up to 4 cm. broad on peduncles 1-10 cm. tall, these leafless or with 1-several very small bract-like leaves; sepals 2, persistent, white- to pinkish-bordered, 4-10 mm. broad; petals 4, oblong, about equal to the sepals at flowering, pinkish to white, quickly withering; stamens 3, opposite the largest petals; style 1.
PNW Herbaria: Specimen records of Calyptridium umbellatum in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Calyptridium umbellatum checklist entry.
OregonFlora: Calyptridium umbellatum information.
E-Flora BC: Calyptridium umbellatum atlas page.
CalPhotos: Calyptridium umbellatum photos.
USDA Plants: Calyptridium umbellatum information.