| 개요 | Shrubs evergreen, climbing, ca. 7 m. Stems terete, usually glabrous; branchlets dark brown to purplish red; prickles scattered, curved, 3-5 ㎜ long, flat; bristles glandular, dense on young stems. Leaves alternate, stipules caducous, linearlanceolate or lanceolate, glandular serrate, apex acuminate; petiole 1-4 ㎝ long, sometimes with glandular bristly and prickles, glabrous; leaflets 3, rarely 5, terminal larger than laterals, elliptic-ovate, obovate, or lanceolate-ovate, 2-7 × 1.5-3.5 ㎝, leathery, sometimes abaxially minutely prickly and glandular bristly along midvein when young, glabrescent, adaxially glabrous, base broadly cuneate or obtuse, margin acutely serrate, apex acute or rounded-obtuse. Flowers solitary, 5-9 ㎝ in diam.; pedicel 2-3.5 ㎝, densely glandular bristly; bracts absent. Hypanthia ovoid, densely glandular bristly. Sepals 5, persistent, 1.8-3.2 ㎝ long, ovate-lanceolate, leaflike, abaxially acachnoid or glabous, adaxially densely acachnoid, margin entire, often dense glandular bristly. Petals 5, white, 3-4 × 3.5-5.5 ㎝, broadly obovate, base broadly cuneate, apex emarginate. Stemens numerous, 8-19 ㎜ long. Styles free, 1-2 ㎜ long, pubescent. Fruit hip, purple-brown, pyriform or obovoid, rarely subglobose, 1-1.5 ㎝ in diam., densely glandular bristly, with persistent, erect sepals. Seeds achenes, 20-30, light tan, 6-8 × 3-5 ㎜. Chromosome number 2n=14. |
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