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bearberry cotoneaster

Cangshan cotoneaster, cotoneaster, truncate-leaf cotoneaster

Habit Shrubs, to 0.2 m. Stems carpeting or procumbent, rooting, to 1.5 m, pliant; branches distichous or spiraled, greenish to light brown, densely lenticellate, initially pilose-strigose. Shrubs, 2–3 m. Stems erect, arching, spreading; branches distichous or spiraled, reddish brown, initially strigose-pilose.
Leaves

persistent;

petiole 2–9 mm, villose-strigose;

blade elliptic or obovate, rarely suborbiculate, 13–43 × 6–26 mm, coriaceous, base cuneate or obtuse, margins revolute, veins 5–8, sunken, apex obtuse or acute, rarely retuse, abaxial surfaces grayish green, reticulate, initially villous, adaxial light green to green, intensely shiny, not glaucous, reticulate-rugose, not bulging between lateral veins, often single hairs on midrib.

deciduous (sometimes tardily so on vigorous basal sprouts);

petiole often red, 3–4 mm, strigose-pilose;

blade elliptic or narrowly elliptic to sometimes elliptic-ovate or narrowly ovate, 20–48(–61) x (10–)15–29 mm, chartaceous, base cuneate or obtuse, margins flat, veins 2–4, sunken, apex minutely truncate, rarely acute, mucronate, abaxial surfaces densely grayish tomentose, adaxial dark green, shiny, not glaucous, flat between lateral veins, slightly rugose, initially pilose;

fall leaves orange.

Inflorescences

on fertile shoots 20–40 mm, usually with 4 leaves, (1 or)2 or 3(or 4)-flowered, compact.

on fertile shoots 30–50 mm with 4–6 leaves, 3–9(–15)-flowered, compact.

Pedicels

4–15 mm, thin, villose-strigose.

1–3 mm, strigose-pilose.

Flowers

slightly pendent, 10–12 mm diam.;

buds white;

hypanthium cupulate, sparsely pilose-strigose;

sepals: margins sparsely villous, apex obtuse or acute, surfaces sparsely pilose-strigose;

petals spreading, white, glabrous;

stamens 20, filaments white, anthers purple-black;

styles 4 or 5.

6.5–9 mm, open;

hypanthium funnelform, silky tomentose;

sepals: margins tomentose, apex cuspidate or acuminate, surfaces tomentose;

petals erect-incurved, pink or reddish, base dark red, margins yellowish or off-white;

stamens 17–20, filaments dark red, at least proximally, anthers white;

styles (2 or)3 or 4[or 5].

Pomes

bright red, obovoid to broadly obovoid, rarely globose, 6–10 × 6–8 mm, shiny, not glaucous, glabrous;

sepals suberect, glabrous;

navel open;

style remnants at apex.

orange-red, obovoid to broadly obovoid or subglobose, rarely globose, (7–)8.2–10.1 × 6.6–7.6 mm, slightly shiny, not glaucous, pilose;

sepals flat, tomentose;

navel closed;

style remnants 2/3 from base.

Pyrenes

4 or 5.

(2 or)3 or 4[or 5].

2n

= 34 (Germany).

= 68 (England).

Cotoneaster dammeri

Cotoneaster qungbixiensis

Phenology Flowering May–Jun; fruiting Sep–Apr. Flowering Jun–Jul; fruiting Oct–Dec.
Habitat Disturbed forests, grassy banks, rock roadcuts, urban waste ground Thickets, disturbed forests
Elevation 0–200 m (0–700 ft) 0–50 m (0–200 ft)
Distribution
from FNA
WA; BC; Asia (China) [Introduced in North America; introduced also in Europe]
[BONAP county map]
from FNA
BC; Asia (China) [Introduced in North America]
Source FNA vol. 9, p. 459. FNA vol. 9, p. 466.
Parent taxa Rosaceae > subfam. Amygdaloideae > tribe Maleae > Cotoneaster Rosaceae > subfam. Amygdaloideae > tribe Maleae > Cotoneaster
Sibling taxa
C. adpressus, C. atropurpureus, C. cochleatus, C. conspicuus, C. crispii, C. dielsianus, C. divaricatus, C. fangianus, C. franchetii, C. frigidus, C. gamblei, C. hjelmqvistii, C. hodjingensis, C. horizontalis, C. integrifolius, C. lacteus, C. lucidus, C. magnificus, C. melanocarpus, C. miniatus, C. monopyrenus, C. nitens, C. pannosus, C. qungbixiensis, C. rehderi, C. salicifolius, C. simonsii, C. sternianus, C. tengyuehensis, C. transens, C. vestitus, C. villosulus, C. ×suecicus
C. adpressus, C. atropurpureus, C. cochleatus, C. conspicuus, C. crispii, C. dammeri, C. dielsianus, C. divaricatus, C. fangianus, C. franchetii, C. frigidus, C. gamblei, C. hjelmqvistii, C. hodjingensis, C. horizontalis, C. integrifolius, C. lacteus, C. lucidus, C. magnificus, C. melanocarpus, C. miniatus, C. monopyrenus, C. nitens, C. pannosus, C. rehderi, C. salicifolius, C. simonsii, C. sternianus, C. tengyuehensis, C. transens, C. vestitus, C. villosulus, C. ×suecicus
Name authority C. K. Schneider: Ill. Handb. Laubholzk. 1: 761, figs. 429 h–k. (1906) J. Fryer & B. Hylmö: J. Bot. Res. Inst. Texas 2: 53, fig. 1. (2008)
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