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Species
Information
- Himalayan
blackberry
- Rubus
discolor = Rubus armeniacus Focke.
- USDA
Symbol: RUDI2
- Oregon
Noxious Weed Designation: B
- Pictures
Identification:
Perennial; blooms June to August. Root buds produce trailing reddish stems with sharp spines that can grow more than 20 ft per season. Leaves alternate, palmate and compound with serrate margins. Flowers five petaled, white to light pink. Fruits aggregate.
Impacts:
Himalayan blackberry is the most widespread and economically disruptive of all the noxious weeds in western Oregon. It aggressively displaces native plant species, dominates most riparian habitats, and has a significant economic impact on right-of-way maintenance, agriculture, park maintanance and forest production. It is a significant cost in riparian restoration projects and physically inhibits access to recreational activities. It reproduces at cane apices (tips) and by seeds, which are carried by birds and animals. This strategy allow it to expand enmass across a landscape or to jump great distances and create new infestations. Any control strategy can be considered short-lived unless projects are planned and funded for the long-term.
Biological
Controls: No approved biological control agent is available.
Oregon
Maps of Himalayan
Blackberry Distribution
Links:
USDA
Plants Database information on Himalayan
blackberry
GRIN
Database information on Himalayan
blackberry
Oregon Department
of Agriculture information on Himalayan
blackberry
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