State Noxious Weed. Height to 3 ft., usually 1-2 ft. Green to yellow bracts surround non-showy umbel flowers; May to September. Stems contain a white, milky substance. Leaves are oblong with one noteworthy vein, 3 lobed capsule fruits.
Cropland, woodlands, shelter belts, and rangeland; roadsides and disturbed sites.
Location in Nebraska
Widespread. Found in most counties in Nebraska.
Pathway of Introduction and Spread
Originally from Eurasia, spreads by seeds and adventitious shoots from crown and roots.
Costs millions of dollars annually due to lost production. Considered toxic to cattle. Establishes quickly and easily and out-competes native vegetation.
NEBRASKAland Magazine/Nebraska Game and Parks Commission
“Weeds of the Great Plains” – Nebraska Department of Agriculture