Himalayan blackberry.
Horticulturalist Luther Burbank first acquired the seeds in 1885 from a trader in India, and dubbed it the “Himalaya” blackberry, though it was actually native to Armenia and Northern Iran. Introduced intentionally into North America on the east coast in 1885 for its tasty blackberries. This species then became established on the west coast by 1945.
Himalayan blackberry is now a Class C noxious weed, Control is recommended because it is widespread and rapid growth, the seeds remain viable in the soil for several years.
Himalayan blackberry out-competes native understory vegetation and prevents the establishment of native trees that require sun for germination such as Pacific Madrone, Douglas Fir and Western White Pine.
Dense, impenetrable blackberry thickets can block access of larger wildlife to water and other resources, and not to mention causing problems for people by overrunning property’s and creating wildfire hazard.