Distribution: Occurring east of the Cascades crest in Benton County, Washington, where disjunct from the main range of the species; central Oregon to California, east to southern Idaho and Utah.
Habitat: Sagebrush desert to montane forest openings.
Flowers: May-July
Origin: Native
Growth Duration: Annual
Conservation Status: Threatened in Washington (WANHP)
Pollination: Bees, butterflies, beetles, wasps
[none provided]
Publication: Botany (Fortieth Parallel), 44, plate 6, figs. 6-8. 1871.
PNW Herbaria: Specimen records of Calyptridium roseum in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Calyptridium roseum checklist entry.
OregonFlora: Calyptridium roseum information.
E-Flora BC: Calyptridium roseum atlas page.
CalPhotos: Calyptridium roseum photos.
USDA Plants: Calyptridium roseum information.
