Distribution: Occurring on both sides of the Cascades crest in Washington; Yukon Territory to Oregon, east to Montana; also in central and eastern North America.
Habitat: Disturbed, open areas, often where moist.
Flowers: July-September
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Ants, bees, flies, butterflies, beetles, wasps
[none provided]
PNW Herbaria: Specimen records of Galium palustre in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Galium palustre checklist entry
OregonFlora: Galium palustre information
E-Flora BC: Galium palustre atlas page
CalPhotos: Galium palustre photos