Rubus nivalis Dougl. ex Hook.

Rubus nivalis DougL; Hook. Fl. Bor. Am. 1: 181. 1832
Rubus pacificus J. M. Macoun, Ottawa Nat. 16: 213. 1903. Cardiobatus nivalis Greene, Leaflets 1: 244. 1906.
A perennial, more or less woody; stems creeping, terete, puberulent, 3-12 dm. long, sparingly armed with curved or hooked prickles; leaves simple or sometimes ternate, bluish green and shining; stipules broadly ovate, short-acuminate, often toothed or lobed, 5-10 mm. long; petioles 2-5 cm. long, channeled, armed with slender recurved prickles: blades of the simple leaves 3-6 cm. long, ovate-cordate or rounded-cordate, more or less distinctly 3-lobed, dentate with broad, abruptly mucronate teeth, reticulate below, glabrous or sparingly hispid above, armed with slender recurved prickles on the veins beneath; lower leaflets of the ternate leaves obliquely ovate, the terminal one broadly rhombic-ovate, somewhat larger; floral branches short, axillary, usually with more than one pair of bracts; flowers usually solitary; sepals 7-9 mm. long, often unequal, lanceolate, acuminate, the outer foliaceous, with a few teeth, villous, in anthesis reflexed; hypanthium shortturbinate, more or less prickly; petals white, linear-lanceolate, tapering at both ends; stamens 10-15, ascending; filaments filiform; pistils few, not all maturing; drupelets pubescent, large, red; putamen faveolate.
Type locality: High snowy ridges of the Rocky Mountains.
Distribution: Mountains from northern California (?) and Oregon to Idaho and British Columbia.