Distribution: Occurring on both sides of the Cascades crest in Washinton; British Columbia to California; east to the southern Rocky Mountains, Great Plains, and eastern North America where widespread.
Habitat: Roadsides, fields, highway and utility right of ways, forest edge, and other often moist, disturbed areas where escaping from cultivation.
Flowers: April-June
Origin: Introduced from Asia
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bumblebees, bees, beetles
[none provided]
PNW Herbaria: Specimen records of Rosa multiflora in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Rosa multiflora checklist entry
OregonFlora: Rosa multiflora information
E-Flora BC: Rosa multiflora atlas page
CalPhotos: Rosa multiflora photos