The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

one-stone cotoneaster

cotoneaster, Franchet's cotoneaster, orange cotoneaster

Habit Shrubs or trees, 3–5 m. Stems loosely erect, arching, spreading; branches spiraled, maroon, lenticellate, initially pilose-strigose. Shrubs, 2–3 m. Stems erect, arching, lax, slender; branches distichous, maroon, initially densely pilose-strigose.
Leaves

deciduous;

petiole 5–9 mm, pilose-strigose;

blade elliptic, broadly elliptic, or broadly obovate, sometimes suborbiculate, 25–58 × 15–40 mm, subcoriaceous, base obtuse or cuneate, margins flat, veins 4–6, slightly sunken, apex obtuse or truncate, seldom acute, abaxial surfaces color not recorded, reticulate, tomentose-pilose, later thinning, adaxial dark green, dull, coating not recorded, flat between lateral veins, glabrescent;

fall leaves pale yellowish green.

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.

Inflorescences

on fertile shoots 30–50 mm with 3–4 leaves, 7–20-flowered, lax.

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

Pedicels

2–5 mm, pilose-strigose.

1–4 mm, densely long-silky hairy.

Flowers

10–12 mm diam., buds white, hypanthium campanulate to cupulate, sparsely pilose-strigose;

sepals: margins reddish, villous, borders maroon-tipped, membranous, apex acute, acuminate, or obtuse, surfaces sparsely pilose-strigose;

petals spreading, white, sometimes with hair tuft;

stamens (15–)20, filaments white;

anthers purple to blackish purple;

styles 1(or 2).

(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).

Pomes

dark red or ruby to maroon, maturing dark purple or purple-black, obovoid, rarely globose or ellipsoid, 9–12.5 × 8.5–11.5 mm, dull, glaucous, glabrous;

sepals flat, margins sparsely hairy, sparsely hairy to glabrate;

navel open;

style remnants at apex.

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.

Pyrenes

1(or 2).

2 or 3(or 4).

2n

= 68 (Germany).

Cotoneaster monopyrenus

Cotoneaster franchetii

Phenology Flowering May–Jun; fruiting Jul–Nov. Flowering May–Jul; fruiting Oct–Apr.
Habitat Thickets Edges, thickets, disturbed forests, flood plains, urban waste ground, mossy ledges, wet prairie remnants
Elevation 0–200 m (0–700 ft) 0–700 m (0–2300 ft)
Distribution
from FNA
WA; Asia (China) [Introduced in North America; introduced also in Europe]
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]
Discussion

L. Lingdi and A. R. Brach (2003) synonymized Cotoneaster monopyrenus with C. hebephyllus (as C. hebephyllus var. hebephyllus).

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

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. 457. FNA vol. 9, p. 465.
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. 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. 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
Synonyms C. hebephyllus var. monopyrenus
Name authority (W. W. Smith) Flinck & B. Hylmö: Bot. Not. 119: 459. (1966) Bois: Rev. Hort. 74: 380, figs. 159–161, 164. (1902)
Web links