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), 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.

"dm" is not declared as a valid unit of measurement for this property.

... more about "Cotoneaster tengyuehensis"
villose-strigose or +  and sparsely moderately gray-tomentose +
yellow +  and orange +
pilose-strigose +  and not glaucous +
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
cuspidate;acuminate;acute;acuminate +
Jeanette Fryer +, Bertil Hylmö† +  and Peter F. Zika +
J. Fryer & B. Hylmö +
compound +  and simple +
opposite +  and alternate +
maroon +, dark red +, red +  and dark-pink +
rounded +  and cuneate +
5 cm50 mm <br />0.05 m <br /> (6.1 cm61 mm <br />0.061 m <br />) +
15 cm150 mm <br />0.15 m <br /> (21 cm210 mm <br />0.21 m <br />) +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
elliptic +  and ovate +
0.4 cm4 mm <br />0.004 m <br /> (15 cm150 mm <br />0.15 m <br />) +
leathery +  and membranous +
1.2 cm12 mm <br />0.012 m <br /> (?) +  and 3.2 cm32 mm <br />0.032 m <br /> (?) +
reddish-brown +
grayish maroon +
adnate +  and distinct +
strigose +  and tomentose +
Tengyueh cotoneaster +
rounded +
Wash. +, Asia (China) +  and also in Europe +
not +  and aggregated +
0–50 m +
whitish +, pale-pink +  and pink +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
ascending +  and erect +
hairy +  and glabrous +
unisexual +  and bisexual +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
not +  and aggregated +
not +  and aggregated +
1.4 cm14 mm <br />0.014 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
orange +  and red or purple +
0.4 cm4 mm <br />0.004 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
Thickets, creek banks, open forests, edges +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
flattened +  and domed +
crassinucellate +
deciduous +
pinnate +  and entire +
2 (?) +  and 14 (?) +
revolute +  and flat +
inferior +  and superior +
biseriate +  and clustered +
collateral +  and basal +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0 (?) +  and 4 (?) +
pink +  and red +
free +  and distinct +
erect-incurved +
1 +  and 5 +
orbiculate;spatulate +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Flowering May–Jun +  and fruiting Sep–Feb. +
adnate +, free +, connate +  and distinct +
bright red +
0.63 cm6.3 mm <br />0.0063 m <br /> (1.04 cm10.4 mm <br />0.0104 m <br />) +
pendent +  and spreading +
strigose +  and not glaucous +
oblong-obovoid +, subglobose +  and obovoid +
0.58 cm5.8 mm <br />0.0058 m <br /> (0.91 cm9.1 mm <br />0.0091 m <br />) +
trigonous +  and planoconvex +
not arillate +
persistent +
free +  and distinct +
triangular +
tomentose +  and strigose +
Introduced +
free +  and distinct +
branched +  and simple +
arching +  and erect +
1 +  and 25 +
short-adnate +
inconspicuous +
lanceolate;linear +
deciduous +
distinct +
lateral +  and terminal +
elongate +
Ostinia +
Cotoneaster tengyuehensis +
Cotoneaster +
species +
inconspicuous +
3 (?) +  and 5 (?) +