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倒根蓼Polygonum ochotense

时间:2013-10-30 14:17来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):倒根蓼 学名( Scientific Name ): Polygonum ochotense V. Petr. ex Kom. 英文名( English Common Name ): 别名( Chinese Common Name ): 倒根拳参 异名 ( Synonym ): Bistorta ochotensis (Petrov ex Kom.) Kom. Pol
中文名(Chinese Name):倒根蓼
学名(Scientific Name):Polygonum ochotense V. Petr. ex Kom.
英文名(English Common Name):
别名(Chinese Common Name):倒根拳参
异名Synonym):Bistorta ochotensis (Petrov ex Kom.) Kom.  Polygonum bistorta subsp. ochotense (V. V. Petrovsky ex Kom.) Vorosch.
科属Family & Genus):蓼科(Polygonaceae)蓼属
形态特征Description):多年生草本;根状茎粗壮,弯曲,黑褐色。茎直立,高15-40厘米,无毛。基生叶卵状披针形或长圆状披针形,近革质,长5-8厘米,宽1.5-3厘米,顶端渐尖,基部圆形或微心形,延叶柄微下延,上面绿色,无毛,下面密被灰白色短柔毛,边缘外卷,微波状;叶柄长6-10厘米;茎生叶3-4, 卵状披针形,较小具短柄,上部的叶抱茎;托叶鞘筒状,膜质,被短柔毛,下部绿色,上部褐色,开裂至中部,无缘毛。总状花序呈短穗状,长2-3厘米,直径1-1.5厘米,紧密;苞片膜质,褐色,顶端长渐尖,具芒尖;花梗细弱,顶端具关节;花被淡红色,5深裂,花被片椭圆形,长2.5-3毫米;雄蕊8,比花被长,花药紫色,花柱3, 细长,伸出花被之外,柱头头状。瘦果长卵形,具3棱,褐色,有光泽,长约4毫米,包于宿存的花被内。花期7-8月,果期8-9月。
分布(Distribution):产吉林,生海拔1500-2500米山坡草地。俄罗斯、朝鲜也有。
引自中国植物志英文版:FOC Vol. 5 Page 295     
Polygonum ochotense V. Petrov ex Komarov, Fl. URSS. 5: 726. 1936.
倒根拳参 dao gen quan shen| Polygonaceae  | Polygonum
Bistorta ochotensis (V. Petrov ex Komarov) Komarov; Polygonum bistorta Linnaeus subsp. ochotense (V. Petrov ex Komarov) V. N. Voroschilov.
Herbs perennial. Rhizomes black-brown, curved, large. Stems erect, 15-40 cm tall, glabrous. Basal leaves long petiolate; petiole 6-10 cm; leaf blade green, ovate-lanceolate or oblong-lanceolate, subleathery, 5-8 × 1.5-3 cm, abaxially densely gray-white pubescent, adaxially glabrous, base rounded or subcordate, slightly decurrent along petiole, margin revolute, apex acuminate. Cauline leaves smaller; petiole short; leaf blade ovate lanceolate; upper leaves clasping; ocrea: lower part green, upper part brown, tubular, pubescent, not ciliate, cleft to middle. Inflorescence spicate, short, 2-3 cm, 1-1.5 cm in diam.; bracts brown, membranous, apex long acuminate, awned. Pedicel slender, articulate at apex. Perianth pinkish, 5-parted; tepals elliptic, 2.5-3 mm. Stamens 8, exserted; anthers purple. Styles 3, exserted, slender; stigmas capitate. Achenes included in persistent perianth, shiny, ovoid, trigonous, ca. 4 mm. Fl. Jul-Aug, fr. Aug-Sep.
Mountain slopes; 1500-2500 m. Jilin [Korea, Russia (Far East)].
 




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