Distribution: Occurring east of the Cascades crest in Kittitas, Chelan, and Okanogan counties in Washington; endemic to southern British Columbia and north-central Washington.
Habitat: Rock outcroppings and dry slopes of open ponderosa pine/Douglas fir forests.
Flowers: April-June
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
[none provided]
PNW Herbaria: Specimen records of Lewisiopsis tweedyi in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Lewisiopsis tweedyi checklist entry.
OregonFlora: Lewisiopsis tweedyi information.
E-Flora BC: Lewisiopsis tweedyi atlas page.
CalPhotos: Lewisiopsis tweedyi photos.
USDA Plants: Lewisiopsis tweedyi information.