from Native Plants Database of the Lady Bird Johnson Wildflower Center: "Stout erect stem bears several branches with yellow daisy-like flower heads. This tough but short-lived perennial, a common invader of overgrazed rangeland in the West, has now spread to dry waste places in the East. Because of its bitter taste it is not eaten by cattle."
from Native Plants Database of the Lady Bird Johnson Wildflower Center: "Native Distribution: Native in western and southwestern North America, ...Native Habitat: Prairies and waste places."
Growing sandy/gravelly poor soil in my native shortgrass prairie yard in Estes Park. Buds and flowers have a sticky substance, therefore the 'gumweed' name.