《中国植物志》|| 蔷薇科 ROSACEAE ||耐寒系 Ser. Frigidi Yu ||耐寒栒子 Cotoneaster frigidus Wall. ex Lindl.

8. 耐寒栒子 图版18: 1-4
Cotoneaster frigidus Wall. ex Lindl. in Bot. Reg. 15: t. 1229. 1829; Hook. f. Fl. Brit. Ind. 2: 385. 1878; Schneid. Ill. Handb. Laubh. 1: 758. f. 426 a. 427 g-h1. 1906; Yu in Bull. Brit. Mus. Bot. 1: 139. 1954; Klotz in Wiss. Zeits. Univ. Halle 6: 956. 1957; Hara, Fl. E. Himal. 2: 50. 1971.——C. frigida Wall. Num. List, no. 657. 1829. nom. nud. ——C. himalaiensis Hort. ex Zabel in Mitt. Deutsch. Dendr. Ges. 1897 (6): 271. 1897. pro syn. ——C. affinis auct. non Lindl. 1822: Hort. ex Zabel, l. c. 1897. pro syn. ——C. compta auct. non C. comptus Lemaire 1848: Hort. ex Schneid. Ill. Handb. Laubh. 1: 758. 1906. pro syn.
落叶灌木或小乔木，高可达10米；枝条开张，小枝圆柱形，有稜角，紫褐色或灰褐色，幼时具绒毛，以后脱落。叶片狭椭圆形至卵状披针形，长3.5-8 (12) 厘米，宽1.5-3 (4.5) 厘米，先端急尖或圆钝，常有刺尖头，基部楔形至宽楔形，上面通常无毛，下面幼时被绒毛，老时脱落近无毛，叶脉在上面微陷，在下面突起；叶柄长4-7毫米，外被绒毛；托叶线状披针形，微具毛。复聚伞花序有多数 (20-40) 密集的花朵，直径3-5厘米，长4-5厘米，总花梗和花梗密被绒毛；花梗长2-4毫米；花直径7毫米；萼筒钟状或近短筒状，外面密生绒毛，内面无毛；萼片三角形，先端急尖，外面具绒毛，内面无毛；花瓣平展，宽卵形，长与宽各约3毫米，先端圆钝，稀微凹缺，基部近无爪，白色；雄蕊18-20，稍短于花瓣；花柱2，离生，较雄蕊短；子房先端密生绒毛。果实椭圆形，直径4-5毫米，红色，具2小核。花期4-5月，果期9-10月。
产西藏。生于河谷或山坡落叶阔叶林中，海拔2800-3300米。不丹、尼泊尔和印度北部均有分布。
本种是在栒子属中较为高大的种类，高可达10米，春季满树缀以白花，秋结红色果实，经久不落，观赏价值很高。木材坚实可作手杖及器物柄。

《Flora of North America》|| Amaryllidaceae || Rosaceae subfam. Amygdaloideae || Cotoneaster frigidus

6. Cotoneaster frigidus Wallich ex Lindley, Edwards"s Bot. Reg. 15: plat 1229. 1829.
[(as frigida)]

Tree cotoneaster

Shrubs or trees, 5–15 m. Stems loosely erect, spreading; branches spiraled, dark brown, initially downy. Leaves deciduous; petiole 5–8 mm, densely villose to tomentose; blade narrowly elliptic (to lance-elliptic or narrowly obovate), 55–150 x 19–55 mm, membranous, base cuneate, margins flat, veins 6–10, superficial or slightly sunken, apex acute, abaxial surfaces color not recorded, villous at least near midvein, adaxial green, dull, coating not recorded, flat between lateral veins, glabrous except villous midrib. Inflorescences on fertile shoots 60–80 mm with 2–4 leaves, 20–60-flowered, lax. Pedicels length not recorded, densely tomentose. Flowers 6–7 mm diam.; buds white; hypanthium cupulate [subcylindric], tomentose; sepals: margins tomentose, apex acute, surfaces densely villous; petals spreading, white, glabrous or with hair tuft; stamens 20, filaments white, anthers purple; styles 2. Pomes bright red, subglobose to ellipsoid, 4–6 x 4–5 mm, shiny, not glaucous, sparsely villous; sepals erect or ascending, ˂margins tomentose˃, densely villous; navel hidden; style remnants near apex. Pyrenes 2. 2n = 34 (India).

Flowering May–Jun; fruiting Sep–Oct. North-facing canyon slopes; 0–500 m; introduced; Calif.; Asia (Himalaya Mountains); introduced also in Europe.

Reports of Cotoneaster frigidus from Washington (F. C. Weinmann 2000; A. L. Jacobson 2001; J. T. Kartesz 2006) are here referred to C. gamblei, plants having larger fruits tending to be obovoid, less densely pubescent inflorescences, and with thicker, more persistent leaves.