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silver-leaf cotoneaster, woolly cotoneaster

cotoneaster, hjelmquist's cotoneaster, Hjelmqvist's cotoneaster

Habit Shrubs, 1–5 m. Stems erect, wide-spreading, arching, pendulous, slender; branches spiraled, purple-black, tomentose-villous. Shrubs, 0.5–1 m. Stems ascending to erect, spreading horizontally, arching; branches usually distichous, brownish red, initially densely strigose.
Leaves

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.

deciduous;

petiole 2–4 mm, pilose;

blade broadly elliptic, on vigorous shoots orbiculate, sometimes broadly obovate, concave, 10–18(–25) x 9–15(–25) mm, chartaceous, base obtuse, margins flat, veins 3 or 4(or 5), superficial or slightly sunken, apex obtuse, mucronulate, abaxial surfaces pale green, yellowish pilose-strigose, adaxial vivid light green, shiny, not glaucous, flat between lateral veins, glabrous;

fall leaves red to intense red-purple.

Inflorescences

on fertile shoots 20–45 mm, usually with 4 leaves, (3–)5–15(–25)-flowered, compact.

on fertile shoots 5–25 mm with 3 or 4 leaves, 1–3(or 4)-flowered, compact.

Pedicels

1–5 mm, tomentose.

0.5–2(–3) mm, glabrescent.

Flowers

[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.

5–6 mm, open;

hypanthium cupulate, glabrescent;

sepals: margins villous, apex green and reddish purple, acuminate or acute, surfaces glabrous;

petals erect-incurved, dark pink, base red, margins pink;

stamens 10–12(–16), filaments red and pale crimson, anthers white;

styles 2 or 3.

Pomes

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.

orange-red, usually broadly obovoid, sometimes subglobose or obovoid, 5.7–6.8[–8] x 4.9–7.2[–8] mm, shiny, not glaucous, glabrous;

sepals suberect, margins villous, glabrous;

navel open;

style remnants 4/5 from base.

Pyrenes

(1 or)2.

2 or 3, distinct.

2n

= 68 (Germany).

Cotoneaster pannosus

Cotoneaster hjelmqvistii

Phenology Flowering May–Aug; fruiting Oct–May. Flowering May; fruiting Oct–Nov.
Habitat Thickets, meadows, sea cliffs, canyons, coastal chaparral, springs, edges, waste ground, pastures, disturbed forests Thickets, wet prairie remnants
Elevation 0–800 m (0–2600 ft) 0–200 m (0–700 ft)
Distribution
from FNA
CA; OR; Asia (China) [Introduced in North America; introduced also in Europe, Africa (South Africa), Pacific Islands (Hawaii, New Zealand), Australia]
[WildflowerSearch map]
[BONAP county map]
from FNA
OR; Asia (China) [Introduced in North America; introduced also in Europe]
[BONAP county map]
Discussion

Cotoneaster hjelmqvistii was overlooked in the Flora of China (L. Lingdi and A. R. Brach 2003).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 9, p. 455. FNA vol. 9, p. 462.
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. 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. 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. 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
Name authority Franchet: Pl. Delavay., 223. (1890) Flinck & B. Hylmö: Watsonia 18: 312. (1991)
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