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

56. Rosa chinensis Jacquin, Observ. Bot. 3: 7. 1768.

月季花 yue ji hua

Shrubs erect, 1–2 m tall. Branchlets purple-brown, terete, robust, subglabrous; prickles abundant to absent, curved, stout, flat. Leaves including petiole 5–11 cm; stipules mostly adnate to petiole, free parts auriculate, margin entire, often glandular-pubescent, apex acuminate; rachis and petiole sparsely prickly and glandular-pubescent; leaflets 3–5, rarely 7, greenish abaxially, dark green adaxially, broadly ovate or ovate-oblong, 2.5–6 × 1–3 cm, both surfaces subglabrous, adaxially often shiny, base subrounded or broadly cuneate, margin acutely serrate, apex long acuminate or acuminate. Flowers 4 or 5 and fasciculate, rarely solitary, slightly fragrant or not, 4–5 cm in diam.; pedicel 2.5–6 cm, subglabrous or glandular-pubescent; bracts 1–3, linear, glabrous, margin glandular or entire, apex acute. Hypanthium ovoid-globose or pyriform, glabrous. Sepals 5, deciduous, ovate, sometimes leaflike, abaxially glabrous, adaxially densely villous, margin entire or few pinnately lobed, rarely entire, apex caudate. Petals 5, semi-double or double, red, pink, white, or purple, obovate, base cuneate, apex emarginate. Styles free, exserted, nearly equaling stamens, pubescent. Hip red, ovoid or pyriform, 1–2 cm in diam., glabrous. Fl. Apr–Sep, fr. Jun–Nov. 2n = 21*, 28*.

Native in Guizhou, Hubei, Sichuan; also widely cultivated in China [widely cultivated elsewhere].

1 Flowers single.   56b var. spontanea
+ Flowers double or semi-double.   (2)
2 (1) Branches robust, often with hooked prickles; leaflets 3–5, rarely 7, abaxially dark green; flowers several, rarely solitary; petals red, pink, or white.   56a var. chinensis
+ Branches slender, with short prickles; leaflets 5–7, thinner, often tinged with purple-red; flowers often solitary, or 2 or 3 and fasciculate; petals deep red or deep purple.   56c var. semperflorens

Lower Taxa


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