Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast.
Habitat: Noxious weed of fields, meadows, roadsides, forest edge, wastelots, and other disturbed areas from the lowlands to near subalpine.
Flowers: June-September
Origin: Introduced from Europe
Conservation Status: Not of concern
Pollination: Bumblebees, bees, flies, wasps
[none provided]
PNW Herbaria: Specimen records of Hypericum perforatum ssp. perforatum in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Hypericum perforatum ssp. perforatum checklist entry
OregonFlora: Hypericum perforatum ssp. perforatum information
E-Flora BC: Hypericum perforatum ssp. perforatum atlas page
CalPhotos: Hypericum perforatum ssp. perforatum photos
