37. Rosa bella Rehder & E. H. Wilson in Sargent, Pl. Wilson. 2: 341. 1915.
美蔷薇 mei qiang wei
Shrubs 1–3 m tall. Branchlets terete, slender; prickles scattered, terete, straight or slightly curved, to 1 cm, abruptly tapering to base; old branches often densely bristly. Leaves including petiole 4–11 cm; stipules broad, mostly adnate to petiole, free parts ovate, glabrous, margin glandular serrate, apex acute; rachis and petiole glabrous or sparsely pubescent, prickly, or sparsely glandular and shortly prickly; leaflets 7–9, rarely 5; elliptic, ovate, or oblong, 1–3 × 0.6–2 cm, glabrous or abaxially along veins sparsely pubescent and glandular-pubescent, base subrounded, margin simply serrate, apex acute or rounded-obtuse. Flowers solitary, or 2 or 3 and fasciculate, 2–5 cm in diam.; pedicel 5–10 mm, stipitate glandular-pubescent or not; bracts ovate-lanceolate, glabrous, margin glandular serrate, apex acuminate. Hypanthium ellipsoid-ovoid. Sepals 5, ovate-lanceolate, leaflike, abaxially stipitate glandular, adaxially densely pubescent, margin entire. Petals 5, pink, obovate, base cuneate, apex emarginate. Styles free, much shorter than stamens, densely villous. Hip deep red, ellipsoid-ovoid, 1–1.5 cm in diam., with a short neck at apex, stipitate glandular or not, with persistent sepals. Fl. May–Jul, fr. Aug–Oct.
Scrub, bases of mountains, stream sides; ca. 1700 m. Hebei, Henan, Jilin, Nei Mongol, Shanxi.
Essential oils are extracted from the flowers, and the fruit are used to make jam. Both the flowers and fruit are used medicinally.
