Cotoneaster tengyuehensis |
Cotoneaster ×suecicus |
|
---|---|---|
cotoneaster, Tengyueh cotoneaster |
Swedish cotoneaster |
|
Habit | Shrubs, 2–2.5 m; crown ± rounded. | Shrubs, 0.4–0.6 m. Stems ± erect or ± procumbent, arching, ends rooting; branches spiraled, green proximally, purple-black distally, initially densely strigose. |
Stems | erect, arching, long; branches distichous, grayish maroon, initially densely strigose. |
|
Leaves | deciduous (sometimes tardily so on vigorous shoots); petiole 1–4 mm, strigose; blade ovate or elliptic, (25–)30–50(–61) x 12–32 mm, chartaceous, base cuneate or rounded, margins flat, veins 3–5, deeply sunken, apex acuminate or acute, abaxial surfaces grayish green, villose-strigose or sparsely to moderately gray-tomentose, adaxial green to dark green, shiny, not glaucous, flat or faintly bulging between lateral veins, pilose-strigose; fall leaves yellow to orange. |
persistent; petiole often red, 1–3 mm, strigose; blade elliptic, 10–27 × 4–12 mm, coriaceous, base cuneate, margins revolute, veins 4–7, superficial, apex obtuse or acute, rarely emarginate, abaxial surfaces gray-green, initially strigose-villous, midrib often red, adaxial dark green, shiny, not glaucous, flat between lateral veins, initially sparsely long-haired pilose. |
Inflorescences | on fertile shoots 25–40 mm with (3 or)4 leaves, 3–7(–9)-flowered, compact. |
on fertile shoots 8–40 mm with 3 or 4 leaves, 1 or 2(–6)-flowered, compact. |
Pedicels | 1–4 mm, densely strigose. |
1–3.5 mm, initially sparsely pilose. |
Flowers | erect or ascending, [5–]6–8 mm, opening small; hypanthium cupulate, strigose; sepals: margins villous, borders reddish brown, glabrous, apex acuminate or cuspidate, surfaces strigose; petals erect-incurved, pink to red, base dark pink or red, rarely dark red or maroon, margins white; stamens 20 or 21, filaments pink or pale pink, whitish distally, anthers white; styles (2 or)3–5. |
12–13 mm diam.; buds white; hypanthium cupulate, initially sparsely pilose; sepals: margins villous, apex acute, surfaces villous; petals spreading, white, glabrous; stamens 15–20, filaments white, anthers dark red-purple; styles 2–4(or 5). |
Pomes | spreading or pendent, bright red, broadly obovoid or subglobose, rarely oblong-obovoid, 6.3–10.4 × 5.8–9.1 mm, shiny, not glaucous, sparsely strigose; sepals flat or suberect, strigose; navel closed; style remnants 2/3 from base. |
red-orange to scarlet, obovoid to subglobose, [4–]7–11 × 7–10 mm, shiny, not glaucous, glabrous or sparsely villous; sepals depressed to slightly ascending, glabrous or sparsely villous; navel open; style remnants at apex. |
Pyrenes | (2 or)3–5. |
2–4(or 5) (always some with more than 2). |
2n | = 68 (Germany). |
= 34 (Germany). |
Cotoneaster tengyuehensis |
Cotoneaster ×suecicus |
|
Phenology | Flowering May–Jun; fruiting Sep–Feb. | Flowering May–Jun; fruiting Oct–May. |
Habitat | Thickets, creek banks, open forests, edges | Hedges, edges, paths, urban waste ground |
Elevation | 0–50 m (0–200 ft) | 0–200 m (0–700 ft) |
Distribution |
WA; Asia (China) [Introduced in North America; introduced also in Europe] |
OR; WA; BC; QC; Europe [Introduced in North America] |
Discussion | L. Lingdi and A. R. Brach (2003) confused Cotoneaster tengyuehensis with C. glomerulatus W. W. Smith, a species with small fruits 5 mm in diameter, with 5 pyrenes and styles, and slightly smaller leaves to 40–50 mm. In the flora area, C. tengyuehensis is more likely to be mistaken for C. franchetii, which is a true evergreen with orange-red, obovate to obconic fruits, and pink to purple stamens. Naturalized shrubs of C. tengyuehensis drop their foliage in midwinter. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Cotoneaster x\suecicus is of garden origin, presumably a cross between C. conspicuus and C. dammeri. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 9, p. 465. | FNA vol. 9, p. 460. |
Parent taxa | ||
Sibling taxa | ||
Name authority | J. Fryer & B. Hylmö: Watsonia 21: 338. (1997) | Cotoneaster ×suecicus G. Klotz: Beitr. Phytotax. 10: 47. (1982) |
Web links |
|
|