Distribution: Occurring east of the Cascades crest in Washington; Yukon Territory south to California, east across southern Canada and the U.S. to the Atlantic Coast.
Habitat: Woods to shaded banks, beneath ledges of large rocks, from low to middle elevations.
Flowers: May-September
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Wind
[none provided]
PNW Herbaria: Specimen records of Parietaria pensylvanica in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Parietaria pensylvanica checklist entry
OregonFlora: Parietaria pensylvanica information
E-Flora BC: Parietaria pensylvanica atlas page
CalPhotos: Parietaria pensylvanica photos