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

15. Rosa morrisonensis Hayata, J. Coll. Sci. Imp. Univ. Tokyo. 30(1): 97. 1911.

玉山蔷薇 yu shan qiang wei

Rosa sericea Lindley var. morrisonensis (Hayata) Masamune.

Shrubs small, 1–2 m tall. Branchlets glabrous; prickles in pairs below leaves, straight, to 1.3 cm, flat; bristles sometimes present and dense. Leaves including petiole 3–5 cm; stipules adnate to petiole, free parts oblong-lanceolate, glabrous, margin entire or sparsely crenate and glandular, apex acuminate; rachis and petiole with a few short prickles, glandular-pubescent; leaflets 7–11(–13), obovate or oblong, 6–12 × 5–8 mm, glabrous, base subrounded or broadly cuneate, margin acutely serrate in upper part, entire below, apex rounded-obtuse or truncate. Flower solitary at tips of short branches, axillary, ca. 2.5 cm in diam.; pedicel 1–1.5 cm, glabrous or subglabrous; bracts absent. Hypanthium pyriform or oblong, glabrous. Sepals 4, lanceolate, abaxially glabrous, sometimes sparsely glandular, adaxially densely pubescent, margin entire, apex long acuminate. Petals 4, white, slightly long obovate, base cuneate, apex rounded. Styles free, exserted, much shorter than stamens, stout, villous. Hip red, pyriform or obovoid, 6–8(–15) mm in diam., with persistent, spreading sepals; pedicel ca. 1.5 cm, glabrous. Fl. Jun–Jul.

Alpine regions; 3200--4200 m. Taiwan (Yushan).


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