Himalaya blackberry Rosaceae Rubus
armeniacus Focke symbol: RUAR9
Leaf: Alternate, palmately compound (usually 5 leaflets), persistent (often barely); leaflets oval, 1 1/2 to 3 inches long, dark green above with a heavy white bloom below, margins serrate. Rachis and petiole armed with heavy, recurved prickles.
Flower: Perfect, complete, large (about 1 inch in diameter), white to pinkish, and borne in clusters of 5 to 20.
Fruit: Black aggregate of drupelets about 1 inch long; adheres to torus (central core) when removed from plant. Very edible.
Twig: Stout, heavily ribbed; purplish-red, armed with heavy, red, recurved prickles.
Form: An erect, spreading, or trailing evergreen shrub that gets very large and grows in dense, impenetrable thickets. Young stems are erect, but arch as they lengthen, eventually touching the ground and rooting at the nodes.
Looks like: evergreen blackberry - whitebark raspberry - salmonberry - wild blackberry
Additional Range Information: Rubus armeniacus is planted in the USDA hardiness zones shown above and may seed into the landscape. See states reporting Himalaya blackberry.
External Links: USDAFS Additional Silvics - USDA Plants Database
All material © 2017 Virginia Tech Dept. of Forest Resources and Environmental Conservation; Photos and text by: John Seiler, Edward Jensen, Alex Niemiera, and John Peterson