Shrubs, 5–15(–20) dm, unarmed. Stems decumbent to erect, glabrous or sparsely short-hairy, eglandular or sparsely stipitate-glandular, not pruinose. Leaves deciduous, simple; stipules lanceolate to narrowly ovate, 5–8(–14) mm; blade orbiculate to reniform, (1.5–)2–4(–5) × (2.5–)3–4.5(–7) cm, base shallowly cordate, 3–5(–7)-lobed, lobe apices broadly rounded to obtuse, margins doubly dentate, abaxial surfaces sparsely hairy, mostly along veins, sparsely stipitate-glandular. Inflorescences 1-flowered. Pedicels pubescent, sparsely to densely short-to long-stipitate-glandular. Flowers bisexual; petals white, obovate to ovate, 15–25(–30) mm; filaments filiform; ovaries glabrous, ?styles clavate, villous?. Fruits dark purple, hemispheric, to 1 cm; drupelets 10–40, coherent, separating from torus. 2n = 14, 21.
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A bramble. The flowers are large and white.
Scrub and rocky slopes in the Rocky mountains. Rocky canyons, outcrops, stream banks; at elevations from 1,800-2,900 metres.
Can be grown by cuttings or seedlings. Seeds needs stratification.
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