Distribution: Occurring east of the Cascades crest in southeastern Washington; southeastern Washington to northeastern Oregon, east to Salmon River area in western Idaho.
Habitat: Grasslands, open conifer forest, scree slopes, and volcanic-based substrates.
Flowers: May-July
Origin: Native
Growth Duration: Annual
Conservation Status: Review Group 1 in Washington (WANHP)
[none provided]
PNW Herbaria: Specimen records of Cryptantha grandiflora in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Cryptantha grandiflora checklist entry
OregonFlora: Cryptantha grandiflora information
E-Flora BC: Cryptantha grandiflora atlas page
CalPhotos: Cryptantha grandiflora photos