Perennial Sowthistle

       

Perennial Sowthistle (Sonchus arvensis) Sunflower family

Perennial with flowers and leaves similar to common dandelion. Plants grow 4 to 5 feet tall. Flower heads are 1 to 2 inches across. Stems are branched only at the top. Basal and stem leaves have prickly margins.Plants exude a milky sap when broken.

Can drastically reduce crop yields in agricultural areas and displace native plants on beaches and in meadows by competing for light and nutrients.

Can grow in waste areas, gardens, meadows, woods, lawns, roadsides, beaches, ditches, and river and lake shores

More information

Distribution

National Park Service U.S. Army Corp of Engineers    Alaska Association of Conservation Districts Tanana Valley Farmers Market Alaska Department of Fish and Game Bureau of Land Management - Fairbanks District Office