Distribution: Occurring west of the Cascades crest in Washington; southwestern British Columbia to western Washington; also in eastern North America, where native.
Habitat: Shores, often where peaty.
Flowers: July-September
Origin: Introduced from eastern North America
Growth Duration: Annual, Perennial
Conservation Status: Not of concern
Pollination: Bumblebees, bees, flies, wasps
[none provided]
PNW Herbaria: Specimen records of Hypericum mutilum in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Hypericum mutilum checklist entry
OregonFlora: Hypericum mutilum information
E-Flora BC: Hypericum mutilum atlas page
CalPhotos: Hypericum mutilum photos