Classified as a noxious weed in Washington and Oregon, Scotch Broom has overtaken much of the Pacific Northwest from British Columbia to California. It is especially problematic in disturbed areas ...
An abundant seed producer, this weed grows in meadows, pastures, along roadsides, and in noncrop areas. Also known as Queen Anne's lace, wild carrot is listed as a Class B noxious weed in Washingto ...
Paterson's Curse is a weed that is a major problem in Australia, but currently has only limited distribution in the Pacific Northwest. This weed has the potential to severely degrade agricultural h ...