"Naturalized from Europe; a common weed from Nova Scotia to British Columbia, south to Florida, Louisiana and California. Throughout Maryland in waste places and fields" (Reed, 1964).
There are 166 records in the project database.
GA | AL | WA | FR | CL | MO | HO | BA | BC | HA | CE | PG | AA | CV | CH | SM | KE | QA | CN | TA | DO | WI | SO | WO |