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珍珠梅Sorbaria sorbifolia

时间:2013-11-06 14:33来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 珍珠梅 学名( Scientific Name ): Sorbaria sorbifolia (L.) A. Braun 英文名( English Common Name ): false spiraea 别名( Chinese Common Name ): 华楸珍珠梅 异名( Synonym ): Spiraea sorbifolia L. Sorbaria s
中文名(Chinese Name):珍珠梅
学名(Scientific Name):Sorbaria sorbifolia (L.) A. Braun
英文名(English Common Name):false spiraea
别名(Chinese Common Name):华楸珍珠梅
异名(Synonym):Spiraea sorbifolia L.  Sorbaria sorbifolia var. typica Schneid.  Sorbaria sorbifolia var. glabra Maxim.
科属(Family & Genus):蔷薇科(Rosaceae)珍珠梅属
形态特征(Description):灌木,高达2米,枝条开展;小枝圆柱形,稍屈曲,无毛或微被短柔毛,初时绿色,老时暗红褐色或暗黄褐色;冬芽卵形,先端圆钝,无毛或顶端微被柔毛,紫褐色,具有数枚互生外露的鳞片。羽状复叶,小叶片11-17枚,连叶柄长13-23厘米,宽10-13厘米,叶轴微被短柔毛;小叶片对生,相距2-2.5厘米,披针形至卵状披针形,长5-7厘米,宽1.8-2.5厘米,先端渐尖,稀尾尖,基部近圆形或宽楔形,稀偏斜,边缘有尖锐重锯齿,上下两面无毛或近于无毛,羽状网脉,具侧脉12-16对,下面明显;小叶无柄或近于无柄;托叶叶质,卵状披针形至三角披针形,先端渐尖至急尖,边缘有不规则锯齿或全缘,长8-13毫米,宽5-8毫米,外面微被短柔毛。顶生大型密集圆锥花序,分枝近于直立,长10-20厘米,直径5-12厘米,总花梗和花梗被星状毛或短柔毛,果期逐渐脱落,近于无毛;苞片卵状披针形至线状披针形,长5-10毫米,宽3-5毫米,先端长渐尖,全缘或有浅齿,上下两面微被柔毛,果期逐渐脱落;花梗长5-8毫米;花直径10-12毫米;萼筒钟状,外面基部微被短柔毛;萼片三角卵形,先端钝或急尖,萼片约与萼筒等长;花瓣长圆形或倒卵形,长5-7毫米,宽3-5毫米,白色;雄蕊40-50,约长于花瓣1.5-2倍,生在花盘边缘;心皮5,无毛或稍具柔毛。蓇葖果长圆形,有顶生弯曲花柱,长约3毫米,果梗直立;萼片宿存,反折,稀开展。花期7-8月,果期9月。
分布(Distribution):产东北、内蒙古,生于海拔250-1500米山坡疏林中。俄罗斯、朝鲜、日本、蒙古亦有分布。
用途(Use):
引自中国植物志英文版:FOC Vol. 9 Page 75      
Sorbaria sorbifolia (Linnaeus) A. Braun in Ascherson, Fl. Brandenburg. 1: 177. 1860.
珍珠梅 zhen zhu mei| Rosaceae  | Sorbaria
Shrubs to 2 m tall. Branches erect; branchlets glabrous or slightly pubescent; buds purple-brown, ovoid. Stipules ovate-lanceolate to triangular-lanceolate, 8–13 mm, abaxially slightly pubescent, apex acuminate. Leaflets 11–17, opposite, lanceolate to ovate-lanceolate, 5–7 × 1.8–2.5 cm, glabrous or subglabrous on both surfaces or abaxially densely stellate hairy, lateral veins in 12–16 pairs, base subrounded to broadly cuneate, rarely slightly oblique, apex acuminate or caudate. Panicle 10–12 × 5–12 cm; peduncle and pedicels more or less pubescent and stellate hairy; bracts ovate to linear-lanceolate, 5–10 mm, slightly pubescent on both surfaces, later glabrescent, apex acuminate. Flowers 10–12 mm in diam.; pedicel 5–8 mm. Hypanthium pubescent abaxially at base. Sepals persistent and reflexed (rarely spreading) in fruit, triangular, abaxially sparsely pubescent, apex obtuse or acute. Petals oblong or obovate, 5–7 mm. Stamens 40–50, 1.5–2 × as long as petals. Style terminal. Follicles cylindric, ca. 3 mm, glabrous; fruiting pedicel erect. Fl. Jul–Aug, fr. Sep.
Open forests; 200--1500 m. Heilongjiang, Jilin, Liaoning, Nei Mongol [Japan, Korea, Mongolia].
 




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