52. Rosa sertata Rolfe, Bot. Mag. 139: t. 8473. 1913.
钝叶蔷薇 dun ye qiang wei
Shrubs 1–2 m tall. Branchlets terete, slender, glabrous; prickles paired below leaves, and sometimes sparsely scattered, terete, straight, to 8 mm, fine, abruptly tapering to a disclike base. Leaves including petiole 5–8 cm; stipules mostly adnate to petiole, free parts ovate, glabrous, auriculate, margin glandular-pubescent, apex acuminate; rachis and petiole sparsely pubescent, glandular-pubescent, and shortly prickly; leaflets 7–15, broadly elliptic or ovate-elliptic, (0.6–)1–2.5 × 0.7–1.5 cm, glabrous or abaxially along midvein sparsely pubescent, with prominent midvein and lateral veins, base subrounded, margin simply serrate to doubly serrate, entire near base, apex acute or rounded-obtuse. Flowers solitary, or 2 or 3 or more in a corymb, 2–3.5 cm in diam.; pedicel 1.5–3 cm, glabrous or sparsely glandular-pubescent; bracteoles 1–3; bracts ovate, margin glandular-pubescent, apex shortly acuminate. Hypanthium ovoid, glabrous or rarely sparsely stipitate glandular. Sepals 5, ovate-lanceolate, leaflike, abaxially glabrous, adaxially densely yellowish white pubescent, margin entire, apex elongate. Petals 5, pink or rose, broadly obovate, base broadly cuneate, apex emarginate. Styles free, shorter than stamens, pubescent. Hip deep red, ovoid, 1.2–2 × ca. 1 cm, glabrous or rarely sparsely stipitate glandular, with a short neck at apex; sepals persistent, erect. Fl. Jun, fr. Aug–Oct.
Sparse woods, slopes, stream sides, roadsides; 1400--2200 m. Anhui, Gansu, Henan, Hubei, Jiangsu, Jiangxi, Shaanxi, Shanxi, Sichuan, Yunnan, Zhejiang.