Abstract:
Himalayan blackberry (Rubus armeniacus, formerly Rubus discolor and Rubus
procerus) is a European shrub that was introduced in the United States as a crop in the late 19th century. It escaped cultivation and has since invaded a variety of sites, including low-elevation streamside areas throughout
the Pacific Northwest. Listed as a noxious weed in Oregon, Himalayan blackberry rapidly occupies disturbed areas, is very difficult to eradicate
once established, and tends to out-compete native vegetation. For those trying to restore or enhance native streamside vegetation, Himalayan
blackberry control is a major problem.
