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红柄白鹃梅 Exochorda giraldii

时间:2013-11-07 12:57来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 红柄白鹃梅 学名( Scientific Name ): Exochorda giraldii Hesse 英文名( English Common Name ): 别名( Chinese Common Name ): 纪氏白鹃梅 异名( Synonym ): Exochorda racemosa subsp. giraldii (Hesse) F. Y. Ga
中文名(Chinese Name):红柄白鹃梅
学名(Scientific Name):Exochorda giraldii Hesse
英文名(English Common Name):
别名(Chinese Common Name):纪氏白鹃梅
异名(Synonym):Exochorda racemosa subsp. giraldii (Hesse) F. Y. Gao et Maesen  Exochorda racemosa var. giraldii (Hesse) Rehder
科属(Family & Genus):蔷薇科(Rosaceae)白鹃梅属
形态特征(Description):落叶灌木,高达3-5米;小枝细弱,开展,圆柱形,无毛,幼时绿色,老时红褐色;冬芽卵形,先端钝,红褐色,边缘微被短柔毛。叶片椭圆形、长椭圆形、稀长倒卵形,长3-4厘米,宽1.5-3厘米,先端急尖,突尖或圆钝,基部楔形、宽楔形至圆形,稀偏斜,全缘,稀中部以上有钝锯齿,上下两面均无毛或下面被柔毛;叶柄长1.5-2.5厘米,常红色,无毛,不具托叶。总状花序,有花6-10朵,无毛,花梗短或近于无梗;苞片线状披针形,全缘,长约3毫米,两面均无毛;花直径3-4.5厘米;萼筒浅钟状,内外两面均无毛;萼片短而宽,近于半圆形,先端圆钝,全缘;花瓣倒卵形或长圆倒卵形,长2-2.5厘米,宽约1.5厘米,先端圆钝,基部有长爪,白色;雄蕊25-30,着生在花盘边缘;心皮5,花柱分离。蒴果倒圆锥形,具5脊,无毛。花期5月,果期7-8月。
分布(Distribution):产河北、河南、山西、陕西、甘肃、安徽、江苏、浙江、湖北、四川,生于海拔1000-2000米山坡、灌木林中。
用途(Use):
引自中国植物志英文版:FOC Vol. 9 Page 83      
Exochorda giraldii Hesse, Mitt. Deutsch. Dendrol. Ges. 17: 191, 219. 1908.
红柄白鹃梅 hong bing bai juan mei| Rosaceae  | Exochorda
Shrubs to 5 m tall. Branchlets green when young, red-b rown when old; buds red-brown, pubescent at scale margins, apex obtuse. Petiole red or green, 1–2.5 cm, glabrous; leaf blade elliptic to narrowly so or oblong, rarely oblong-obovate, 3–4 × 1.5–3 cm, glabrous on both surfaces or abaxially pubescent, base cuneate or broadly so to rounded, rarely oblique, margin entire or serrate, apex obtuse or apiculate. Raceme 3–4.5 cm in diam., 6–10-flowered; peduncle and pedicels glabrous; bracts linear-lanceolate, ca. 3 mm, glabrous. Flowers 3–5 cm in diam.; pedicel short or nearly absent. Hypanthium shallowly campanulate, glabrous. Sepals nearly semiorbicular, ca. 2 mm, glabrous, apex obtuse. Petals obovate or oblong-obovate, 2–2.5 × ca. 1.5 cm, base attenuate into a long claw, apex rounded. Stamens 20–30, 3- or 4-fascicled. Capsule glabrous; fruiting pedicel 1–2 mm or nearly absent. Fl. May, fr. Jul–Aug.
Scrub on slopes, rocky places in valleys; 600--2000 m. Anhui, Gansu, Hebei, Henan, Hubei, Shaanxi, Shanxi, Sichuan, Zhejiang.
 






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