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silver-leaf cotoneaster, woolly cotoneaster

cream-flower cotoneaster, cream-flower or late or parney's cotoneaster, late cotoneaster, milk-flower cotoneaster

Habit Shrubs, 1–5 m. Stems erect, wide-spreading, arching, pendulous, slender; branches spiraled, purple-black, tomentose-villous. Shrubs or trees, 2–9 m. Stems erect, arching, spreading, slender; branches spiraled or distichous, purple-black, initially yellowish tomentose-villous.
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.

persistent;

petiole 5–8 mm, initially tomentose;

blade obovate to elliptic, rarely broadly elliptic, (26–)40–85(–120) x (13–)19–45(–60) mm, coriaceous, base cuneate, margins flat or slightly revolute, veins 7–9, deeply sunken, apex short-tapered, acute, acuminate, or obtuse, abaxial surfaces initially yellowish tomentose-villous, adaxial dark green, dull or slightly shiny, not glaucous, bulging slightly between lateral veins, initially sparsely pilose.

Inflorescences

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

on fertile shoots 45–100 mm with 4 leaves, 20–150-flowered, lax.

Pedicels

1–5 mm, tomentose.

1–5 mm, tomentose-strigose.

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.

6–9 mm diam.;

buds creamy white, sometimes slightly pinkish;

hypanthium funnelform, tomentose-strigose;

sepals: margins villous, apex cuspidate, surfaces tomentose;

petals spreading, creamy white, sometimes with hair tuft;

stamens 20, filaments white, anthers red-purple;

styles 2.

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.

crimson, broadly obovoid, subglobose, or globose, 6.5–8.6 × 6.5–7.6 mm, shiny, not glaucous, sparsely villous;

sepals depressed or slightly ascending, tomentose;

navel slightly open or obscured by sepals;

style remnants near apex.

Pyrenes

(1 or)2.

2.

2n

= 68 (Germany).

= 68 (Germany).

Cotoneaster pannosus

Cotoneaster lacteus

Phenology Flowering May–Aug; fruiting Oct–May. Flowering May–Jul; fruiting Nov–Apr.
Habitat Thickets, meadows, sea cliffs, canyons, coastal chaparral, springs, edges, waste ground, pastures, disturbed forests Thickets, disturbed forests, edges, urban waste ground, stonework, grassy bluffs, canyons, pond shores
Elevation 0–800 m (0–2600 ft) 0–700 m (0–2300 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
CA; OR; WA; BC; Asia (China) [Introduced in North America; introduced also in Europe, Pacific Islands (New Zealand)]
[WildflowerSearch map]
Discussion

Cotoneaster lacteus sometimes is synonymized with C. coriaceus Franchet (for example, L. Lingdi and A. R. Brach 2003). As treated here, plants of this species are identified by their fertile shoots to 10 cm, scarcely shiny leaves to 120 × 60 mm with adaxial surfaces bulging between lateral veins, flowers to 150 in lax inflorescences, 6–9 mm diam. with cream petals, and larger, later-ripening fruits. Plants of C. coriaceus have fertile shoots to 5 cm, shiny leaves to 52 × 24 mm with flat adaxial surfaces, flowers to 50 in compact inflorescences, 9–10 mm diam. with white petals, and smaller, earlier-ripening fruits.

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

Source FNA vol. 9, p. 455. FNA vol. 9, p. 454.
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. hjelmqvistii, C. hodjingensis, C. horizontalis, C. integrifolius, 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) W. W. Smith: Notes Roy. Bot. Gard. Edinburgh 10: 23. (1917)
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