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毛叶水栒子 Cotoneaster submultiflorus

时间:2013-11-06 13:48来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 毛叶水栒子 学名( Scientific Name ): Cotoneaster submultiflorus Popov 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): Cotoneaster borealichinensis (Hurus.) Hurus. Cotoneast
中文名(Chinese Name):毛叶水栒子
学名(Scientific Name):Cotoneaster submultiflorus Popov
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Cotoneaster borealichinensis (Hurus.) Hurus.  Cotoneaster multiflorus var. borealichinensis Hurus.
科属(Family & Genus):蔷薇科(Rosaceae)栒子属
形态特征(Description):落叶直立灌木,高2-4米;小枝细,圆柱形,棕褐色或灰褐色,幼时密被柔毛,逐渐脱落以后无毛。叶片卵形、菱状卵形至椭圆形,长2-4厘米,宽1.2-2厘米,先端急尖或圆钝,基部宽楔形,全缘,上面无毛或幼时微具柔毛,下面具短柔毛,无白霜;叶柄长4-7毫米,微具柔毛;托叶披针形,有柔毛,多数脱落。花多数,成聚伞花序,总花梗和花梗具长柔毛;花梗长4-6毫米;苞片线形,有柔毛;花直径8-10毫米;萼筒钟状,外面被柔毛,内面无毛;萼片三角形,先端急尖,外面被柔毛,内面无毛;花瓣平展,卵形或近圆形,长3-5毫米,先端圆钝或稀微缺,白色;雄蕊15-20,短于花瓣;花柱2,离生,稍短于雄蕊;子房先端有短柔毛。果实近球形,直径6-7毫米,亮红色,有由2心皮合生的1小核。花期5-6月,果期9月。
分布(Distribution):产内蒙古、山西、陕西、甘肃、宁夏、青海、新疆,生于海拔900-2000米岩石缝间或灌木丛中。亚洲中部也。
用途(Use):
引自中国植物志英文版:FOC Vol. 9 Page 94      
Cotoneaster submultiflorus Popov, Bull. Soc. Imp. Naturalistes Moscou, n.s. 44: 126. 1935.
毛叶水栒子 mao ye shui xun zi| Rosaceae  | Cotoneaster
Cotoneaster borealichinensis (Hurusawa) Hurusawa; C. multiflorus Bunge var. borealichinensis Hurusawa.
Shrubs deciduous, erect, 2–4 m tall. Branchlets brownish or grayish brown, terete, slender, initially densely pubescent, gradually glabrescent. Petiole 4–7 mm, puberulous; stipules lanceolate, pubescent, usually glabrescent; leaf blade ovate or rhombic-ovate to elliptic, 2–4 × 1.2–2 cm, abaxially pubescent, without glaucous bloom, adaxially glabrous or initially puberulous, base broadly cuneate, apex acute or obtuse. Corymbs 1.5–2.5 cm, many flowered; rachis and pedicels villous; bracts linear, villous. Pedicel 4–6 mm. Flowers 8–10 mm in diam. Hypanthium campanulate, abaxially pilose. Sepals triangular, shorter than petals, apex acute. Petals spreading, white, ovate or suborbicular, 3–5 × 2.5–4 mm, base shortly clawed, apex obtuse or somewhat emarginate. Stamens 15–20, shorter than petals. Ovary pubescent apically; styles 2, free, not exceeding stamens. Fruit bright red, subglobose, 6–7 mm in diam.; pyrenes usually 2, united into 1. Fl. May–Jun, fr. Aug–Sep.
Rock crevices, thickets; 900--2000 m. Gansu, Hebei, Henan, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shanxi, Sichuan, Xinjiang, Xizang [C Asia].
 


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