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FOC | Family List | FOC Vol. 9 | Rosaceae | Rosa

7. Rosa hugonis Hemsley, Bot. Mag. 131: t. 8004. 1905.

黄蔷薇 huang qiang wei

Shrubs small, ca. 2.5 m tall, robust when old; prickles scattered, straight, to 1.2 cm, stout, flat, gradually tapering to a broad, elliptic base, base often ca. as long as prickle, intermixed with smaller prickles and bristles. Leaves including petiole 4–8 cm; stipules elongate, mostly adnate to petiole, free parts short, auriculate, glabrous, margin sparsely glandular-pubescent; rachis and petiole glandular when young; leaflets 5–13, ovate, elliptic, or obovate, 8–20 × 5–12 mm, glabrous, abaxially with prominent midvein, adaxially concave, margin entire or acutely serrate, apex acuminate. Hypanthium subglobose, abaxially glabrous. Sepals 5, lanceolate, ca. 2 × as long as hypanthium, abaxially glabrous, adaxially slightly pubescent. Petals 5, light yellow, broadly obovate, base broadly cuneate, apex emarginate. Styles free, shorter than stamens, slightly exserted, white villous. Hip purple-red or black-brown, depressed-globose, 1.2–1.5 cm in diam., glabrous, shiny, with persistent, reflexed sepals; pedicel 1–2 cm, glabrous. Fl. May–Jun, fr. Jul–Aug.

Scrub at forest margins, thickets, open slopes; 600--2300 m. Gansu, Qinghai, Shaanxi, Shanxi, Sichuan.


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