Shrubs climbing, small. Branchlets gray-brown or gray-green, slightly curved; prickles slightly curved, short, flat. Leaves including petiole 2–3 cm; stipules mostly adnate to petiole, free parts lanceolate, both surfaces sparsely pubescent, margin glandular-pubescent, apex acuminate; rachis and petiole pubescent; leaflets 3–5, rhomboid-ovate or oblong, 1–1.5 cm × 5–8 mm, abaxially sparsely pubescent, with prominent midvein and lateral veins, adaxially glabrous, base cuneate or broadly cuneate, margin crenate or obtusely serrate, apex acute or rounded-obtuse. Flowers 3–5 in corymb, ca. 2 cm in diam.; pedicel ca. 1 cm, subglabrous; bracts deciduous, ovate-lanceolate, both surfaces pubescent, margin glandular-pubescent, apex broadly caudate. Hypanthium obovoid, subglabrous. Sepals 5, lanceolate, abaxially sparsely glandular-pubescent, adaxially densely pubescent, apex acuminate. Petals 5, white, before and at beginning of anthesis pink, obovate, base broadly cuneate, apex erose. Styles 5 or 6, free, exserted, slightly shorter than stamens, pubescent. Hip unknown.

One of us (Robertson) has seen no specimens of this species.

W Yunnan (Midu Xian).