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高山绣线菊Spiraea alpina

时间:2013-11-07 13:59来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 高山绣线菊 学名( Scientific Name ): Spiraea alpina Pall. 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): 科属( Family Genus ): 蔷薇科(Rosaceae)绣线菊属 形态特征( Des
中文名(Chinese Name):高山绣线菊
学名(Scientific Name):Spiraea alpina Pall.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):
科属(Family & Genus):蔷薇科(Rosaceae)绣线菊属
形态特征(Description):灌木,高50-120厘米;枝条直立或开张,小枝有明显稜角,幼时被短柔毛,红褐色,老时灰褐色,无毛;冬芽小,卵形,通常无毛,有数枚外露鳞片。叶片多数簇生,线状披针形至长圆倒卵形,长7-16毫米,宽2-4毫米,先端急尖或圆钝,基部楔形,全缘,两面无毛,下面灰绿色,具粉霜,叶脉不显著;叶柄甚短或几无柄。伞形总状花序具短总梗,有花3-15朵;花梗长5-8毫米,无毛;苞片小,线形;花直径5-7毫米;萼筒钟状,外面无毛,内面具短柔毛;萼片三角形,先端急尖,内面被短柔毛;花瓣倒卵形或近圆形,先端圆钝或微凹,长与宽各约2-3毫米,白色;雄蕊20,几与花瓣等长或稍短于花瓣;花盘显著,圆环形,具10个发达的裂片;子房外被短柔毛,花柱短于雄蕊。蓇葖果开张,无毛或仅沿腹缝线具稀疏短柔毛,花柱近顶生,开展,常具直立或半开张萼片。花期6-7月,果期8-9月。
分布(Distribution):产陕西、甘肃、青海、四川、西藏,生于海拔2000-4000米向阳坡地或灌丛中。蒙古、俄罗斯也有分布。
用途(Use):
引自中国植物志英文版:FOC Vol. 9 Page 67      
Spiraea alpina Pallas, Fl. Ross. 1: 35. 1784.
高山绣线菊 gao shan xiu xian ju| Rosaceae  | Spiraea
Shrubs to 1.2 m tall, much branched. Branches erect or spreading; branchlets red-brown, turning gray-brown when old, conspicuously angled, pubescent when young, finally glabrous; buds ovoid, small, with several scales, glabrous. Leaves mostly tufted; petiole very short or nearly absent; leaf blade gray-green and glaucous-bloomy abaxially, linear-lanceolate to oblong-obovate, 7–16 × 2–5 mm, glabrous on both surfaces, veins inconspicuous, base cuneate, margin entire, apex obtuse or acute. Racemes pedunculate, umbellate, 1.5–2(–3) × 1.5–2 cm, up to 20-flowered; pedicels 5–8 mm, glabrous; bracts linear, small, caducous. Flowers 5–7 mm in diam. Hypanthium campanulate, glabrous abaxially. Sepals triangular, 1–2 × 1.5–2 mm, erect or semispreading in fruit, apex acute. Petals white, obovate or suborbicular, 2–3 mm, about as broad as long, base shortly clawed, apex obtuse or emarginate. Stamens ca. 20, slightly shorter than to subequaling petals. Disk distinct, annular, 10-lobed. Carpels pubescent; styles shorter than stamens. Follicles spreading, glabrous or pilose on adaxial suture; styles subterminal, divergent. Fl. Jun–Jul, fr. Aug–Sep.
Thickets, valleys, open slopes, roadsides; 2000--4000 m. Gansu, Henan, Qinghai, Shaanxi, Shanxi, Sichuan, Xinjiang, Xizang [Mongolia, Russia, Sikkim].


 
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