Difference between revisions of "Rosa sect. Bracteatae"
Prodr. Monogr. Rosier, 125. 1820.
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|distribution=Asia;introduced also in West Indies;Europe;Australia. | |distribution=Asia;introduced also in West Indies;Europe;Australia. | ||
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|discussion=<p>Species 2 (1 in the flora).</p> | |discussion=<p>Species 2 (1 in the flora).</p> | ||
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|special status=Introduced | |special status=Introduced | ||
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|subfamily=Rosaceae subfam. Rosoideae | |subfamily=Rosaceae subfam. Rosoideae | ||
|tribe=Rosaceae tribe Roseae | |tribe=Rosaceae tribe Roseae | ||
Latest revision as of 22:54, 5 November 2020
Shrubs, forming dense clumps and thickets; stoloniferous. Stems ± climbing, spreading, or vinelike, sometimes decumbent, 30–50 dm; distal branches densely puberulent to tomentose, stipitate-glandular; infrastipular prickles usually paired, curved or hooked, flattened, stout, internodal prickles curved or hooked, sometimes erect and slender, usually mixed with aciculi and stipitate glands. Leaves persistent or semipersistent, 4.5–6.5 cm, leathery; stipules persistent, adnate to petiole at bases, margins pectinate cleft into segments, sparsely stipitate-glandular; leaflets (5–)7–9(–11), terminal: petiolule 3–5 mm, blade narrowly obovate, sometimes elliptic, 14–30 × 5–15 mm, abaxial surfaces glabrous, sometimes pubescent, stipitate-glandular, adaxial lustrous. Inflorescences panicles, 1 or 2(–8)-flowered. Pedicels erect, stout, 3–6 mm, densely white sericeo-tomentose, eglandular, setae dense; bracts caducous, 6–8, closely subtending short pedicels and covering 1/2 or all of hypanthia, margins deeply laciniate, eglandular. Flowers 5–7(–10) cm diam.; hypanthium urceolate, densely white sericeo-tomentose, eglandular; sepals persistent, spreading or reflexed, ovate, 12–17 × 3–6 mm, margins (outer) sometimes pinnatifid, abaxial surfaces densely white-sericeous, eglandular; petals single, white; carpels 60–68, styles free, pilose, stylar orifice 2.5–3 mm diam., hypanthial disc flat, 7–9 mm diam. Hips orange-red, subglobose or globose, rarely oblong, 7–30 × 8–30 mm, sparsely to densely white sericeo-tomentose, not setose, eglandular; sepals tardily deciduous, spreading or reflexed. Achenes basiparietal.
Distribution
Introduced; Asia, introduced also in West Indies, Europe, Australia.
Discussion
Species 2 (1 in the flora).
Selected References
None.