Showing 4 types of TARWEED
Introduced from South America, and now distributed along the west coast from Washington to California.
Native to the western United States and found from Oregon south through much of California.
Native to western North America, where it occurs from California north into Canada, and east to Montana and Utah. It also occurs as an introduced species in Maine.
A native plant in California, and extremely common in pastures, disturbed sites, and along roadsides. Also found in Oregon.