Cotoneaster cochleatus |
Cotoneaster nitens |
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Yunnan cotoneaster |
few-flower cotoneaster, Kokonor cotoneaster |
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Habit | Shrubs, to 0.4 m. Stems prostrate or nearly so, carpeting, rooting; branches spiraled and distichous, dense, red to purple-black, slender, initially yellow-green strigose. | Shrubs, 1.5–3 m. Stems erect, becoming pendulous; branches divaricate, red-brown, initially strigose. |
Leaves | persistent; petiole 1–4 mm, strigose; blade obovate to broadly obovate, rarely suborbiculate, 5–14 × 3–9 mm, coriaceous, base obtuse or broadly cuneate, margins slightly revolute, veins 2 or 3, superficial, apex obtuse, sometimes emarginate, abaxial surfaces grayish, reticulate, initially densely strigose-villous, adaxial dark green, shiny, not glaucous, sometimes lightly rugose, glabrescent. |
deciduous; petiole 2–3(–4) mm, pilose-strigose; blade elliptic or obovate, sometimes broadly elliptic, broadly ovate, or suborbiculate, 8–28 × 9–23 mm, chartaceous, base rounded, margins flat, veins 3–5, superficial, apex obtuse or acute and mucronulate, abaxial surfaces pale green, initially densely pilose-strigose, adaxial initially reddish, soon bright green, dull to slightly shiny, not glaucous, flat between lateral veins, glabrous; fall leaves turning bright red and gold. |
Inflorescences | on fertile shoots 8–15 mm, usually with 4 leaves, 1(–3)-flowered. |
on fertile shoots 15–30 mm with 3–4(–5) leaves, 1–3(or 4)-flowered, compact. |
Pedicels | 3–5 mm, strigose. |
2–4 mm, glabrescent. |
Flowers | 7–10 mm diam.; buds pinkish; hypanthium cupulate, strigose or pilose-strigose; sepals: margins villous, apex obtuse or acute, surfaces initially sparsely pilose-strigose; petals spreading, white, glabrous; stamens (15–)20, filaments white, anthers dark purple; styles 2(or 3). |
6–7 mm, open; hypanthium widely cupulate, sparsely pilose; sepals: margins tomentose, apex obtuse, acute, or apiculate, surfaces sparsely pilose; petals erect-incurved, pink-tinged with purple-maroon or pink-red, base drying to purple-black, margins white, glabrous; stamens 10–14(or 15), filaments pink, sometimes red-purple, distally dark pink, anthers pink or white, margins pale crimson, drying to dark red; styles 2(or 3). |
Pomes | bright red to crimson, subglobose, 7–9 × 8–10 mm, slightly shiny, not glaucous, sparsely pilose; sepals suberect, sparsely strigose; navel slightly open; style remnants at apex on small projection. |
purple-black, ellipsoid or obovoid to globose, (7–)8–9.5 × 6.5–8 mm, shiny, slightly glaucous, sparsely pilose to glabrate; sepals erect or suberect, sparsely pilose; navel open; style remnants 3/4 from base. |
Pyrenes | 2(or 3). |
2(or 3). |
2n | = 68 (Germany). |
= 68 (Germany). |
Cotoneaster cochleatus |
Cotoneaster nitens |
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Phenology | Flowering May–Jun; fruiting Sep–Nov. | Flowering Mar–May; fruiting Jul–Nov. |
Habitat | Forest edges | Thickets, edges, disturbed forests |
Elevation | 0–50 m (0–200 ft) | 0–200 m (0–700 ft) |
Distribution |
NY; Asia (China) [Introduced in North America; introduced also in Europe] |
OR; WA; Asia (China) [Introduced in North America; introduced also in Europe] |
Discussion | Cotoneaster cochleatus was treated as a variety of C. microphyllus by L. Lingdi and A. R. Brach (2003); here the two are distinguished at species rank, following H. Nybom et al. (2005). Plants of C. microphyllus have a suberect habit, usually elliptic leaves (rarely broadly obovate) with acute apices, and pomes 6 mm wide; C. cochleatus is always prostrate and has usually obovate leaves (rarely suborbiculate) with blunt apices, and pomes 8–10 mm wide. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 9, p. 459. | FNA vol. 9, p. 463. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | C. buxifolius, C. microphyllus var. cochleatus, C. thymifolius var. cochleatus | |
Name authority | (Franchet) G. Klotz: Wiss. Z. Martin-Luther-Univ. Halle-Wittenberg, Math.-Naturwiss. Reihe 6: 952. (1957) | Rehder & E. H. Wilson: in C. S. Sargent, Pl. Wilson. 1: 156. (1912) |
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