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Chinese Plant Names | Family List | Rosaceae | Rosa

Rosa weisiensis Yu et Ku


Description from Flora of China

Shrub climbing, small. Branchlets purple-brown, terete, glabrous, those of present year glandular-pubescent and sparsely pubescent; prickles scattered, short, flat. Leaves including petiole 4–4.5 cm; stipules membranous, mostly adnate to petiole, free parts lanceolate, abaxially and margin glandular, apex acuminate; rachis and petiole sparsely glandular-pubescent and pubescent; leaflets 3–5, deep green adaxially, ovate or elliptic, rarely oblong, 1.2–2.5 × 0.4–1.4 cm, abaxially glandular-pubescent and sparsely pubescent, glabrous, base subrounded, margin doubly serrate, teeth often glandular apically when young, apex acute or shortly acuminate. Flowers 5–10 in corymb, ca. 1.5 cm in diam.; pedicel 8–12 mm, densely glandular-pubescent, sparsely pubescent; bracts caducous, unknown. Hypanthium oblong or ovate-oblong, abaxially glandular-pubescent and sparsely pubescent. Sepals 5, lanceolate, abaxially glandular-pubescent and sparsely pubescent, adaxially densely pubescent, margin entire, apex long acuminate. Petals 5, fragrant, white, broadly obovate, base cuneate, apex emarginate. Styles connate into column, nearly equaling stamens, exserted, densely pubescent. Hip unknown. Fl. May–Jul, fr. Aug–Oct.

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

Scrub; 1800--2300 m. NW Yunnan (Weixi Xian).


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