Alleghany blackberry Rosaceae Rubus allegheniensis Porter   symbol: RUAL
	Leaf: Alternate, palmately compound, 3 to 5 inches long and wide, 3 to 7 leaflets (mostly 5), ovate to oval leaflets, serrated margins, prickles on petiole, dark green above and much paler below. Flower: Monoecious; showy white flowers (one inch across) with 5 petals, larger and persisting longer than black raspberry. Fruit: Juicy, black multiple of drupes, up to 1 inch long, ripens in late summer. When picked, the fruit does not separate from its core. Twig: Stout, strongly angled canes with large hooked prickles, dull reddish brown, lacking glaucous bloom. Cane tips do not root. Bark: Similar to twig but darkens with age. Form: Sprawling, arching canes that form dense thickets, often well over head-high, particularly when supported.
	No range map exists for this species. See a map of the states in which Rubus allegheniensis can be found (opens a new window). USDA Plants Database Rubus allegheniensis is native to North America.