Cotoneaster tengyuehensis

J. Fryer & B. Hylmö

Watsonia 21: 338. 1997.

Common names: Tengyueh cotoneaster
Introduced
Treatment appears in FNA Volume 9. Treatment on page 465. Mentioned on page 451, 452, 453.

Shrubs, 2–2.5 m; crown ± rounded. Stems erect, arching, long; branches distichous, grayish maroon, initially densely strigose. Leaves deciduous (sometimes tardily so on vigorous shoots); petiole 1–4 mm, strigose; blade ovate or elliptic, (25–)30–50(–61) x 12–32 mm, chartaceous, base cuneate or rounded, margins flat, veins 3–5, deeply sunken, apex acuminate or acute, abaxial surfaces grayish green, villose-strigose or sparsely to moderately gray-tomentose, adaxial green to dark green, shiny, not glaucous, flat or faintly bulging between lateral veins, pilose-strigose; fall leaves yellow to orange. Inflorescences on fertile shoots 25–40 mm with (3 or)4 leaves, 3–7(–9)-flowered, compact. Pedicels 1–4 mm, densely strigose. Flowers erect or ascending, [5–]6–8 mm, opening small; hypanthium cupulate, strigose; sepals: margins villous, borders reddish brown, glabrous, apex acuminate or cuspidate, surfaces strigose; petals erect-incurved, pink to red, base dark pink or red, rarely dark red or maroon, margins white; stamens 20 or 21, filaments pink or pale pink, whitish distally, anthers white; styles (2 or)3–5. Pomes spreading or pendent, bright red, broadly obovoid or subglobose, rarely oblong-obovoid, 6.3–10.4 × 5.8–9.1 mm, shiny, not glaucous, sparsely strigose; sepals flat or suberect, strigose; navel closed; style remnants 2/3 from base. Pyrenes (2 or)3–5. 2n = 68 (Germany).


Phenology: Flowering May–Jun; fruiting Sep–Feb.
Habitat: Thickets, creek banks, open forests, edges
Elevation: 0–50 m

Distribution

V9 783-distribution-map.jpg

Introduced; Wash., Asia (China), introduced also in Europe.

Discussion

L. Lingdi and A. R. Brach (2003) confused Cotoneaster tengyuehensis with C. glomerulatus W. W. Smith, a species with small fruits 5 mm in diameter, with 5 pyrenes and styles, and slightly smaller leaves to 40–50 mm. In the flora area, C. tengyuehensis is more likely to be mistaken for C. franchetii, which is a true evergreen with orange-red, obovate to obconic fruits, and pink to purple stamens. Naturalized shrubs of C. tengyuehensis drop their foliage in midwinter.

Selected References

None.

Lower Taxa

None.
... more about "Cotoneaster tengyuehensis"
Jeanette Fryer +, Bertil Hylmö† +  and Peter F. Zika +
J. Fryer & B. Hylmö +
Tengyueh cotoneaster +
Wash. +, Asia (China) +  and introduced also in Europe. +
0–50 m +
Thickets, creek banks, open forests, edges +
Flowering May–Jun +  and fruiting Sep–Feb. +
Introduced +
Ostinia +
Cotoneaster tengyuehensis +
Cotoneaster +
species +