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cotoneaster, Franchet's cotoneaster, orange cotoneaster

bearberry cotoneaster

Habit Shrubs, 2–3 m. Stems erect, arching, lax, slender; branches distichous, maroon, initially densely pilose-strigose. 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.
Leaves

persistent, often 30–40 mm apart;

petiole 2–4 mm, tomentose-pilose;

blade ovate or elliptic, 22–58 × 12–29 mm, coriaceous, base cuneate or obtuse, margins flat, veins 4 or 5, sunken, apex acute or acuminate, mucronate, abaxial surfaces silvery-tomentose, adaxial grayish green, slightly shiny, not glaucous, flat, rarely slightly bulging between lateral veins, drying slightly rugose, pilose.

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.

Inflorescences

on fertile shoots 30–60 mm with 4 leaves, 5–15(–25)-flowered, compact.

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

Pedicels

1–4 mm, densely long-silky hairy.

4–15 mm, thin, villose-strigose.

Flowers

(5–)7–8(–10) mm, opening small;

hypanthium cupulate, densely long-silky hairy;

sepals: margins villous, borders purple, glabrous, apex cuspidate or acuminate, surfaces silky hairy;

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

stamens 16–21, filaments pink, distally white, anthers pink or purplish pink;

styles 2 or 3(or 4).

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.

Pomes

orange-red, obovoid base rounded or obconic base cuneate, straight-sided, 8–12 × 6–9 mm, apex flat, shiny, not glaucous, sparsely pilose;

sepals flat, often asymmetric with 2 sepals longer than others, tomentose;

navel slightly open;

style remnants 3/4 from base.

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.

Pyrenes

2 or 3(or 4).

4 or 5.

2n

= 68 (Germany).

= 34 (Germany).

Cotoneaster franchetii

Cotoneaster dammeri

Phenology Flowering May–Jul; fruiting Oct–Apr. Flowering May–Jun; fruiting Sep–Apr.
Habitat Edges, thickets, disturbed forests, flood plains, urban waste ground, mossy ledges, wet prairie remnants Disturbed forests, grassy banks, rock roadcuts, urban waste ground
Elevation 0–700 m (0–2300 ft) 0–200 m (0–700 ft)
Distribution
from FNA
CA; OR; WA; BC; Asia (China) [Introduced in North America; introduced also in Europe, Pacific Islands (New Zealand), Australia]
[WildflowerSearch map]
[BONAP county map]
from FNA
WA; BC; Asia (China) [Introduced in North America; introduced also in Europe]
[BONAP county map]
Discussion

Reports of Cotoneaster franchetii from Colorado (J. Ells 2006) are here referred to C. lucidus. A few specimens escaped in Washington have red filaments, not pink, but otherwise agree with C. franchetii. Other escapes in Washington suggest the closely related C. wardii W. W. Smith, distinguished by semievergreen habit, longer fertile shoots, more lax and elongate inflorescences, and white anthers. The entire complex needs biosystematic review.

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

Source FNA vol. 9, p. 465. FNA vol. 9, p. 459.
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. 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. 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
Name authority Bois: Rev. Hort. 74: 380, figs. 159–161, 164. (1902) C. K. Schneider: Ill. Handb. Laubholzk. 1: 761, figs. 429 h–k. (1906)
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