Distribution: Occurring east of the Cascades crest in far southeastern Washington; southeastern Washington to western Montana, possibly also in southern British Columbia, southern Alberta, and northwestern Wyoming.
Habitat: Basalt outcrops and seeps in grasslands.
Flowers: May-July
Origin: Native
Conservation Status: Threatened in Washington (WANHP)
[none provided]
PNW Herbaria: Specimen records of Erythranthe ampliata in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Erythranthe ampliata checklist entry.
E-Flora BC: Erythranthe ampliata atlas page.
CalPhotos: Erythranthe ampliata photos.
USDA Plants: Erythranthe ampliata information.