Rosa primula Boulenger

Shrubs erect, small, 1–2 m tall. Branchlets terete, slender, glabrous; prickles sparse to numerous, paired below some leaves, frequently opposite elsewhere, straight, to 1.5 cm, stout, flat, gradually tapering to a broad elliptic base, small prickles and bristles absent. Leaves including petiole 3–7 cm; stipules mostly adnate to petiole, free parts ovate-lanceolate, glabrous, margin inconspicuously serrate and glandular; rachis and petiole sparsely glandular; leaflets (7–)9–15, elliptic, elliptic-obovate, or long elliptic, 6–15 × 3–8 mm, glabrous, abaxially with prominent midvein, densely glandular punctate, base subrounded or broadly cuneate, margin doubly obtusely serrate, apex rounded-obtuse or acute. Flower solitary, axillary, 2.5–4 cm in diam.; pedicel 8–10 mm, glabrous; bracts absent. Hypanthium ovoid or subglobose, glabrous. Sepals 5, lanceolate, abaxially glabrous, adaxially sparsely villous, margin entire, apex acuminate. Petals 5, yellowish or yellow-white, obovate, base broadly cuneate, apex emarginate. Styles free, shorter than stamens, slightly exserted, villous. Hip red or black-brown, ovoid or subglobose, ca. 1 cm in diam., glabrous, with persistent, reflexed sepals; pedicel to 1.5 cm, glabrous. Fl. May–Jul, fr. Jul–Nov.

Gansu, Hebei, Henan, Shaanxi, Shanxi, Sichuan.

Forests, scrub, slopes; 800--2500 m.

Rosa primula, also known as the incense rose, is a species of wild shrub rose that originated in China and Turkestan.