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田旋花Convolvulus arvensis

时间:2013-09-05 10:48来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):田旋花 学名( Scientific Name ): Convolvulus arvensis L. 英文名( English Common Name ): field bindweed 别名( Chinese Common Name ): 中国旋花、箭叶旋花 异名( Synonym ): Convolvulus arvensis var. crassifo
中文名(Chinese Name):田旋花
学名(Scientific Name):Convolvulus arvensis L.
英文名(English Common Name):field bindweed
别名(Chinese Common Name):中国旋花、箭叶旋花
异名(Synonym):Convolvulus arvensis var. crassifolius Choisy  Convolvulus arvensis var. linearifolius Choisy  Convolvulus arvensis var. sagittatus Ledeb.  Convolvulus chinensis Ker Gawl.  Convolvulus arvensis var. angustatus Ledeb.  Convolvulus arvensis var. sagittifolius Turcz.  Convolvulus incanus auct. non Vahl  Strophocaulos arvensis (L.) Small  Convolvulus ambigens House  Convolvulus arvensis var. hastulatus Meisn.  Convolvulus arvensis var. villosus Choisy
科属(Family & Genus):旋花科(Convolvulaceae)旋花属
形态特征(Description):多年生草本,根状茎横走,茎平卧或缠绕,有条纹及棱角,无毛或上部被疏柔毛。叶卵 状长圆形至披针形,长1.5-5厘米,宽1-3厘米,先端钝或具小短尖头,基部大多戟形,或箭形及心形,全缘或3裂,侧裂片展开,微尖,中裂片卵状椭圆形,狭三角形或披针状长圆形,微尖或近圆;叶柄较叶片短,长1-2厘米;叶脉羽状,基部掌状。花序腋生,总梗长3-8厘米,1或有时2-3至多花,花柄比花萼长得多;苞片2,线形,长约3毫米;萼片有毛,长3.5-5毫米,稍不等,2个外萼片稍短,长圆状椭圆形,钝,具短缘毛,内萼片近圆形,钝或稍凹,或多或少具小短尖头,边缘膜质;花冠宽漏斗形,长15-26毫米,白色或粉红色,或白色具粉红或红色的瓣中带,或粉红色具红色或白色的瓣中带,5浅裂;雄蕊5,稍不等长,较花冠短一半,花丝基部扩大,具小鳞毛;雌蕊较雄蕊稍长,子房有毛,2室,每室2胚珠,柱头2,线形。蒴果卵状球形,或圆锥形,无毛,长5-8毫米。种子4,卵圆形,无毛,长3-4毫米,暗褐色或黑色。
分布(Distribution):主要产于我国中北部,江苏、四川及西藏也有。生于耕地及荒坡草地上。广布两半球温带。
用途(Use):全草入药,调经活血,滋阴补虚。
引自中国植物志英文版FOC Vol. 16 Page 291      
Convolvulus arvensis Linnaeus, Sp. Pl. 1: 153. 1753.
田旋花 tian xuan hua | Convolvulaceae  | Convolvulus
Convolvulus arvensis var. angustatus Ledebour; C. arvensis var. crassifolius Choisy; C. arvensis var. linearifolius Choisy; C. arvensis var. sagittatus Ledebour; C. arvensis var. sagittifolius Turczaninow; C. chinensis Ker Gawler; C. sagittifolius (Fischer) Liou & Ling.
Herbs perennial, with ± woody rhizomes. Stems prostrate or twining, to 1 m tall, glabrous or sparsely pubescent. Petiole 0.3-2 cm; leaf blade ovate-oblong to ovate, 1.5-5 X 1-4 cm, glabrous or pubescent, base hastate, sagittate, or cordate, apex obtuse, mucronulate; prominently 3-veined basally, upper parts pinnately veined. Inflorescences axillary, cymose, 1-3-flowered; peduncle 3-8 cm; bracts 2, linear, ca. 3 mm. Pedicel ca. 4 as long as calyx. Sepals unequal, 3.5-5 mm; outer 2 broadly oblong to obovate, shorter, abaxially sparsely pubescent or glabrous, margin ± ciliate, apex retuse; inner ones ovate-circular, margin membranous, apex obtuse or retuse. Corolla white or pink, broadly funnelform, 1.5-2.6 cm, midpetaline bands pubescent outside distally; limb shallowly 5-lobed. Stamens included, unequal; filaments minutely scaly basally. Disc cupular. Ovary ovoid, glabrous or sparsely pubescent. Stigmas cylindric. Capsule ovoid to subglobose, 5-8 mm, glabrous. Seeds 4 or fewer, dark brown or black, ovoid, 3-4 mm, tuberculate. Fl. Jun-Aug, fr. Jun-Sep. 2n = 24, 48, 50.
Cultivated areas, wasteland, roadsides, grassy slopes; 600-4500 m. Anhui, Gansu, Hebei, Heilongjiang, Henan, Hubei, Jiangsu, Jilin, Liaoning, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shandong, Shanxi, Sichuan, Xinjiang, Xizang [Asia, Europe, North America, South America].






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