Distribution: Occurring east of the Cascades crest in Okanogan County in Washington; Alaska to California, east to the northern Rocky Mountains; circumboreal.
Habitat: Alpine areas, typically where moist.
Flowers: June-August
Origin: Native
Growth Duration: Annual
Conservation Status: Threatened in Washington (WANHP)
Pollination: Self-pollination
[none provided]
PNW Herbaria: Specimen records of Comastoma tenellum in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Comastoma tenellum checklist entry.
OregonFlora: Comastoma tenellum information.
E-Flora BC: Comastoma tenellum atlas page.
CalPhotos: Comastoma tenellum photos.
USDA Plants: Comastoma tenellum information.