12. Rosa tsinglingensis Pax & Hoffmmann, Repert. Spec. Nov. Regni Veg. Beih. 12: 414. 1922.
秦岭蔷薇 qing long qiang wei
Shrubs small, 2–3 m tall. Branchlets slender; prickles sparse, occasionally bristly and glandular-pubescent. Leaves including petiole 5–11 cm; stipules mostly adnate to petiole, apical free parts auriculate, glabrous, margin glandular serrate; rachis and petiole sparsely prickly and glandular-pubescent; leaflets 11–13, rarely 9, elliptic or oblong, 1–2 × 0.8–1.2 cm, abaxially glabrous or subglabrous, along midvein glandular-pubescent, adaxially glabrous, with concave veins, base subrounded or broadly cuneate, margin doubly or simply serrate, teeth glandular apically when young, apex rounded-obtuse or acute. Flower solitary, axillary, 2.5–3 cm in diam.; pedicel 1.5–2 cm, sparsely glandular-pubescent; bracts present or not. Hypanthium glabrous. Sepals 5, triangular-lanceolate, leaflike, abaxially glabrous, adaxially densely pubescent, margin entire or serrate. Petals 5, white, obovate, base cuneate, apex emarginate. Styles free, slightly exserted, much shorter than stamens, densely pubescent. Hip red-brown, obovoid or oblong-obovoid, 2–3 cm, with persistent, erect sepals; pedicel 1.5–2 cm, sparsely glandular-pubescent. Fl. Jul–Aug, fr. Sep.
Betula forests, scrub; 2800--3700 m. Gansu, Shaanxi.
One of us (Robertson) has seen no specimens of this species.