Cotoneaster pannosus Franch.

Silverleaf cotoneaster (en), Cotonéaster dégarni (fr)

Species

Angiosperms > Rosales > Rosaceae > Cotoneaster

Characteristics

Shrubs, 1–5 m. Stems erect, wide-spreading, arching, pendulous, ?slender?; branches spiraled, purple-black, 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. Inflorescences on fertile shoots 20–45 mm, usually with 4 leaves, (3–)5–15(–25)-flowered, compact. Pedicels 1–5 mm, tomentose. 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. Pomes red, globose, depressed-globose, subglobose, or broadly obovoid, 5–9.2 x 5.5–9.5 mm, shiny, not glaucous, villous; sepals suberect, tomentose; navel open; style remnants at apex. Pyrenes (1 or)2. 2n = 68 (Germany).
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Shrubs semievergreen, to 2 m tall. Branchlets dark grayish brown or purplish brown, thin, initially densely white tomentose, glabrescent. Petiole 2–7 mm, tomentose; stipules caducous, linear, pubescent; leaf blade narrowly elliptic, elliptic, or ovate, 2–3(–4) × 0.8–1.5 cm, leathery, midvein impressed adaxially, lateral veins 4–6 pairs, abaxially densely white tomentose, adaxially slightly pubescent or glabrous, base broadly cuneate, apex obtuse or acute. Corymbs 1–3 × 1.5–2.5 cm, to 10(–20)-flowered; rachis and pedicels densely tomentose; bracts caducous, linear, pubescent. Pedicel 2–3 mm. Flowers 7–8 mm in diam. Hypanthium campanulate, abaxially densely tomentose. Sepals triangular, apex shortly acuminate or acute. Petals spreading, white, broadly ovate or suborbicular, 3–3.5 mm, base shortly clawed and puberulous adaxially, apex obtuse. Stamens 20, nearly as long as petals; anthers purplish red. Ovary pubescent apically; styles 2(or 3), free, ca. as long as stamens. Fruit dark red, globose or ovoid, 7–8 mm in diam., pyrenes often 2. Fl. Jun, fr. Oct–Nov. 2n = 34*, 68*.
Perennial shrub, 2-5 m high; branches arched; branchlets thin, dark brown; initially covered with short, dense hairs shedding at maturity. Leaves simple, blades elliptic, 15-30 x 8-16 mm, apex mucronulate, glabrous above, whitish tomentose beneath; petioles 5-8 mm long. Flowers terminal corymbs, 8 mm in diam.; petals white, broadly ovate or subglobose, 3.0-3.5 mm long, base short, claw-bearing, apex obtuse; calyx bell-shaped and triangular, sepals apically short-acuminate or acute; petals and sepals glabrous inside and densely hairy outside. Bracts linear and caducous. Flowering time June, July. Fruit subglobose to ellipsoid. Seeds 2-5, 4-5 mm long.
Semi-evergreen shrub, up to 3 m high. Branches spreading, drooping at ends; unarmed. Leaves simple; blade ovate to elliptic, 10-25 x 5-15 mm, apex acute, margins entire, upper surface dull green and glabrous, lower surface densely whitish hairy; petioles 2-7 mm long. Flowers: corolla ± 10 mm in diameter; petals white; Oct., Nov. Fruit dull deep red, subglobose pomes with two nutlets.
Semi-evergreen shrub, up to 3 m high. Branches spreading, drooping at the ends. Leaves ovate to elliptic, dull / green, white-tomentose beneath. Fruits red, subglobose. Flowers white.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination entomogamy
Spread endozoochory
Mature width (meter) 1.0 - 1.5
Mature height (meter) 2.0 - 2.75
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light 4-9
Soil humidity 2-4
Soil texture 4-7
Soil acidity 2-8
Soil nutriment -
Hardiness (USDA) 7-9

Usage

Uses environmental use
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings or seedlings.
Mode cuttings seedlings
Germination duration (days) 180 - 365
Germination temperacture (C°) 21
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -18
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Leaf

Cotoneaster pannosus leaf picture by pep (cc-by-sa)
Cotoneaster pannosus leaf picture by Diego Alex (cc-by-sa)
Cotoneaster pannosus leaf picture by casado María (cc-by-sa)

Flower

Cotoneaster pannosus flower picture by Morató Roser (cc-by-sa)
Cotoneaster pannosus flower picture by ann verhelst (cc-by-sa)
Cotoneaster pannosus flower picture by Pierre Mambré (cc-by-sa)

Fruit

Cotoneaster pannosus fruit picture by ann verhelst (cc-by-sa)
Cotoneaster pannosus fruit picture by Kay (cc-by-sa)
Cotoneaster pannosus fruit picture by Alejandra Ramírez (cc-by-sa)

Distribution

Cotoneaster pannosus world distribution map, present in Australia, China, Colombia, France, United Kingdom of Great Britain and Northern Ireland, Guam, Mexico, New Zealand, Peru, Portugal, United States of America, and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:722623-1
WFO ID wfo-0001004048
COL ID 6B92C
BDTFX ID 19163
INPN ID 92689
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Cotoneaster amoenus Cotoneaster lidjiangensis Cotoneaster pannosus