Cotoneaster lucidus |
Cotoneaster pannosus |
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cotonéaster à feuilles aiguës, hedge cotoneaster, shiny cotoneaster |
silver-leaf cotoneaster, woolly cotoneaster |
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Habit | Shrubs, 1.5–2.5 m. Stems erect, arching, or spreading; branches spiraled or distichous, dense, greenish gray to maroon, not lenticellate, initially strigose. | Shrubs, 1–5 m. Stems erect, wide-spreading, arching, pendulous, slender; branches spiraled, purple-black, tomentose-villous. |
Leaves | deciduous; petiole 4–8 mm, strigose; blade elliptic or ovate, sometimes obovate, 28–50(–65) x 17–32(–40) mm, chartaceous, base cuneate or rounded, margins flat, not revolute, veins 3–5, sunken, apex short-acuminate or acute, abaxial surfaces green, sparsely pilose-strigose, adaxial dark green, intensely shiny, not glaucous, flat or scarcely bulging between lateral veins, slightly rugose, initially sparsely strigose; fall leaves intense dark red, yellow, or orange. |
persistent; petiole 4–7 mm, tomentose; blade elliptic, sometimes broadly elliptic, 15–35(–39) x 10–19(–26) mm, mid-coriaceous, base cuneate, margins flat, veins 4–6, usually superficial, sometimes slightly sunken, apex acute or obtuse, abaxial surfaces whitish tomentose, adaxial green to blue-green, dull, not glaucous, usually flat between lateral veins, initially sparsely pilose. |
Inflorescences | on fertile shoots 25–50 mm with 4 or 5 leaves, 2–6(–15)-flowered, lax. |
on fertile shoots 20–45 mm, usually with 4 leaves, (3–)5–15(–25)-flowered, compact. |
Pedicels | 5–12 mm, sparsely pilose. |
1–5 mm, tomentose. |
Flowers | 5.5–8 mm, largely open; hypanthium cupulate, base sparsely pilose, glabrescent; sepals: margins villous, apex acute or acuminate, surfaces glabrous; petals erect, pinkish white, sometimes green-tinged, base dark pink or reddish; stamens 18–20, filaments pink, base dark pink, anthers white; styles 2 or 3. |
[7–]8.5–10 mm diam.; buds white; hypanthium funnelform or cupulate, silky-tomentose; sepals: margins villous, borders white, narrow, membranous, apex red, cuspidate, sometimes acute or obtuse, surfaces tomentose; petals spreading, white, sometimes with hair tuft; stamens 16–20, filaments white, anthers dark pink-purple to purple; styles (1 or)2. |
Pomes | black, broadly obovoid to obovoid, rarely ellipsoid or globose, (8–)9.5–12.1 x (7.5–)8.7–11.8 mm, shiny, glaucous, sparsely pilose; sepals flat, margins villous, sparsely pilose; navel open; style remnants 2/3 from base. |
red, globose, depressed-globose, subglobose, or broadly obovoid, 5–9.2 × 5.5–9.5 mm, shiny, not glaucous, villous; sepals suberect, tomentose; navel open; style remnants at apex. |
Pyrenes | 2 or 3. |
(1 or)2. |
2n | = 68 (Germany). |
= 68 (Germany). |
Cotoneaster lucidus |
Cotoneaster pannosus |
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Phenology | Flowering Mar–Jul (sometimes reflowering in Sep); fruiting Jul–Oct. | Flowering May–Aug; fruiting Oct–May. |
Habitat | Deciduous or coniferous forests, ravines, lakeshores, forested dunes, thickets, edges | Thickets, meadows, sea cliffs, canyons, coastal chaparral, springs, edges, waste ground, pastures, disturbed forests |
Elevation | 0–2300 m (0–7500 ft) | 0–800 m (0–2600 ft) |
Distribution |
CO; ID; IN; MN; WA; WY; AB; BC; MB; ON; QC; SK; Asia (Mongolia, Siberian Russia) [Introduced in North America; introduced also in Europe] |
CA; OR; Asia (China) [Introduced in North America; introduced also in Europe, Africa (South Africa), Pacific Islands (Hawaii, New Zealand), Australia]
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Discussion | Leaf glossiness is often retained on herbarium specimens and is visible with strong lighting and magnification. Plants of Cotoneaster acutifolius of China and Mongolia are seldom seen in cultivation. Reports of it naturalized in North America are here referred to the commonly cultivated C. lucidus, which tolerates continental winters. No specimens have been seen to support reports of the latter from Montana and Oregon. Some reports of C. melanocarpus from Alberta and Manitoba (H. J. Scoggan 1978–1979, part 3) are here referred to C. lucidus. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 9, p. 463. | FNA vol. 9, p. 455. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | C. acutifolius var. lucidus | |
Name authority | Schlechtendal: Linnaea 27: 541. (1854) | Franchet: Pl. Delavay., 223. (1890) |
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