Distribution: Occurring on both sides of the Cascades crest in Washington, through more common west of the crest; Alaska to California, east to Montana and Nevada.
Habitat: Riparian zones, swamps, marshes, and other wetland habitats where open.
Flowers: May-July
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Beetles
[none provided]
PNW Herbaria: Specimen records of Cornus sericea ssp. occidentalis in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Cornus sericea ssp. occidentalis checklist entry
OregonFlora: Cornus sericea ssp. occidentalis information
E-Flora BC: Cornus sericea ssp. occidentalis atlas page
CalPhotos: Cornus sericea ssp. occidentalis photos