Distribution: Alaska east to Newfoundland, south to California and North Carolina.
Habitat: Stream banks and open, moist or dry woods to rocky slopes in the mountains, often on talus.
Flowers: May - July
Conservation Status: Not of concern
Strong perennial 1-2 m. tall, more or less bristly and prickly, otherwise glabrous or pubescent, the bark yellow to cinnamon-brown, peeling.
Leaves alternate, usually trifoliate, the leaflets ovate-oblong to broadly lanceolate, 4-10 cm. long, irregularly biserrate, green and glabrous on the upper surface, usually gray-woolly beneath.
Flowers several, 1-4 per axil, forming a leafy, racemose inflorescence; calyx somewhat woolly to bristly-glandular, the 5 lobes reflexed, lanceolate, 4-8 mm. long; petals 5, white, ascending, narrowly oblong, 4-6 mm. long; stamens 75-100, glabrous; pistils numerous, styles slender
Drupelets weakly coherent to form a red raspberry, finely short-woolly.