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白鹃梅 Exochorda racemosa

时间:2013-11-06 13:50来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 白鹃梅 学名( Scientific Name ): Exochorda racemosa (Lindl.) Rehder 英文名( English Common Name ): common pearlbrush 别名( Chinese Common Name ): 总花白鹃梅、茧子花 异名( Synonym ): Amelanchier racemos
中文名(Chinese Name):白鹃梅
学名(Scientific Name):Exochorda racemosa (Lindl.) Rehder
英文名(English Common Name):common pearlbrush
别名(Chinese Common Name):总花白鹃梅、茧子花
异名(Synonym):Amelanchier racemosa Lindl.  Exochorda grandiflora Lindl.  Spiraea grandiflora Hook.  Albertia simplicifolia A.Regel, nom. nud.  Exochorda albertii Regel  Exochorda tianschanica Gontsch.  Exochorda grandiflora var. albertii (Regel) Asch. & Graebn.  Exochorda racemosa f. prostrata (Schwer.) Rehder  Exochorda racemosa var. dentata (Chenault ex Rehder) Rehder  Exochorda racemosa var. prostrata (Schwer.) Rehder  Exochorda grandiflora subtaxon prostrata Schwer. 
科属(Family & Genus):蔷薇科(Rosaceae)白鹃梅属
形态特征(Description):灌木,高达3-5米,枝条细弱开展;小枝圆柱形,微有稜角,无毛,幼时红褐色,老时褐色;冬芽三角卵形,先端钝,平滑无毛,暗紫红色。叶片椭圆形,长椭圆形至长圆倒卵形,长3.5-6.5厘米,宽1.5-3.5厘米,先端圆钝或急尖稀有突尖,基部楔形或宽楔形,全缘,稀中部以上有钝锯齿,上下两面均无毛;叶柄短,长5-15毫米,或近于无柄;不具托叶。总状花序,有花6-10朵,无毛;花梗长3-8毫米,基部花梗较顶部稍长,无毛;苞片小,宽披针形;花直径2.5-3.5厘米;萼筒浅钟状,无毛;萼片宽三角形,长约2毫米,先端急尖或钝,边缘有尖锐细锯齿,无毛,黄绿色;花瓣倒卵形,长约1.5厘米,宽约1厘米,先端钝,基部有短爪,白色;雄蕊15-20,3-4枚一束着生在花盘边缘,与花瓣对生;心皮5,花柱分离。蒴果,倒圆锥形,无毛,有5脊,果梗长3-8毫米。花期5月,果期6-8月。
分布(Distribution):产河南、江西、江苏、浙江,生于海拔250-500米山坡阴地。
用途(Use):
引自中国植物志英文版:FOC Vol. 9 Page 83      
Exochorda racemosa (Lindley) Rehder in Sargent, Pl. Wilson. 1: 456. 1913.
白鹃梅 bai jian mei| Rosaceae  | Exochorda
Amelanchier racemosa Lindley, Edwards’s Bot. Reg. 33: t. 38. 1847; Exochorda grandiflora Lindley.
Shrubs to 3 m tall. Branchlets red-brown when young, later brown; buds dark purple, trigonous-ovoid, apex obtuse. Petiole 5–15 mm or nearly absent; leaf blade elliptic or narrowly so to oblong-obovate, 3.5–6.5 × 1.5–3.5 cm, glabrous on both surfaces, base cuneate or broadly so, margin entire, rarely obtusely serrate above middle, apex obtuse or acute, rarely apiculate. Raceme 2.5–3.5 cm in diam., 6–10-flowered; peduncle and pedicels glabrous; bracts broadly lanceolate, ca. 3 mm, glabrous. Flowers 2.5–3.5 cm in diam.; pedicel 3–5 mm. Hypanthium shallowly campanulate, glabrous. Sepals broadly triangular, ca. 2 mm, glabrous, apex obtuse or acute. Petals obovate, ca. 1.5 × 1 cm, base shortly clawed, apex obtuse. Stamens 15–20, 3- or 4-fascicled. Capsule glabrous; fruiting pedicel 3–8 mm. Fl. May, fr. Jun–Jul.
Shady slopes; 200--500 m. Henan, Jiangsu, Jiangxi, Zhejiang.
 




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