Distribution: Occurring west of the Cascades crest in Washington in the Lower Columbia River area; southwestern Washington to adjacent Oregon; native from southern Rocky Mountains and Great Plains to the Atlantic coast.
Habitat: Sandy riverbanks.
Flowers: June-August
Origin: Introduced from central and eastern North America
Growth Duration: Perennial
Conservation Status: Not of concern
[none provided]
PNW Herbaria: Specimen records of Triplasis purpurea in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Triplasis purpurea checklist entry
OregonFlora: Triplasis purpurea information
E-Flora BC: Triplasis purpurea atlas page
CalPhotos: Triplasis purpurea photos