Distribution: Occurring east of the Cascades crest in Okanogan, Douglas, and Chelan counties in Washington; British Columbia to California, east to Montana, Idaho, Wyoming, and Colorado.
Habitat: Rocky outcroppings, Ponderosa pine forest openings, and montane shrub-steppe communities.
Flowers: May-June
Origin: Native
Growth Duration: Annual
Conservation Status: Threatened in Washington (WANHP)
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PNW Herbaria: Specimen records of Lathrocasis tenerrima in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Lathrocasis tenerrima checklist entry
OregonFlora: Lathrocasis tenerrima information
E-Flora BC: Lathrocasis tenerrima atlas page
CalPhotos: Lathrocasis tenerrima photos