娃儿藤Tylophora ovata

中文名(Chinese Name):娃儿藤
学名(Scientific Name):Tylophora ovata (Lindl.) Hook. ex Steud.
英文名(English Common Name):
别名(Chinese Common Name):白龙须、哮喘草
异名(Synonym):Tylophora mollissima Wight  Tylophora atrofolliculata Metc.  Diplolepis ovata Lindl.  Gymnema hirsuta Wall.  Tylophora hispida var. brownii Hayata  Tylophora hirsuta (Wall.) Wight  Tylophora hispida Decne.  Tylophora panzhutenga Z. Y. Zhu  Tylophora lanyuensis Liu et L. T. Lu 
科属Family & Genus):萝藦科Asclepiadaceae娃儿藤属Tylophora
形态特征Description):攀援灌木;须根丛生;茎上部缠绕;茎、叶柄、叶的两面、花序梗、花梗及花萼外面均被锈黄色柔毛。叶卵形,长2.5-6厘米,宽2-5.5厘米,顶端急尖,具细尖头,基部浅心形;侧脉明显,每边约4条。聚伞花序伞房状,丛生于叶腋,通常不规则两歧,着花多朵;花小,淡黄色或黄绿色,直径5毫米;花萼裂片卵形,有缘毛,内面基部无腺体;花冠辐状,裂片长圆状披针形,两面被微毛;副花冠裂片卵形,贴生于合蕊冠上,背部肉质隆肿,顶端高达花药一半;花药顶端有圆形薄膜片,内弯向柱头;花粉块每室1个,圆球状,平展;子房由2枚离生心皮组成,无毛;柱头五角状,顶端扁平。蓇葖双生,圆柱状披针形,长4-7厘米,径0.7-1.2厘米,无毛;种子卵形,长7毫米,顶端截形,具白色绢质种毛;种毛长3厘米。花期4-8月,果期8-12月。
分布(Distribution):产于云南、广西、广东、湖南和台湾。生长于海拔900米以下山地灌木丛中及山谷或向阳疏密杂树林中。分布于越南、老挝、缅甸、印度。
用途(Use):根及全株可药用,能祛风、止咳、化痰、催吐、散瘀;可治风湿腰痛、跌打损伤、胃痛、哮喘、毒蛇咬伤等。
引自中国植物志英文版:FOC Vol. 16 Page 258   
Tylophora ovata (Lindley) Hooker ex Steudel, Nomencl. Bot., ed. 2. 2: 726. 1841.
娃儿藤 wa er teng | Asclepiadaceae  | Tylophora
Diplolepis ovata Lindley, Trans. Hort. Soc. London 6: 286. 1826; Gymnema hirsuta Wallich; Tylophora atrofolliculata F. P. Metcalf; T. hirsuta (Wallich) Wight; T. hispida Decaisne; T. hispida var. brownii Hayata; T. lanyuensis Liu & Lu; T. mollissima Wallich ex Wight; T. panzhutenga Z. Y. Zhu.
Lianas to 5 m, rusty hispid, villous, or pubescent except for adaxial leaf surface and sometimes follicles. Petiole 0.5-3 cm; leaf blade ovate, 2.5-12.5(-16) × 1.2-9 cm, base cordate to subcordate, apex acute or short acuminate and mucronate; lateral veins 4-6 pairs. Inflorescences 4-13 cm; peduncle 0.5-2 cm; rachis simple, zigzag, occasionally forked; cymules sessile, racemelike, dense, many flowered. Pedicel threadlike, 5-10 mm. Sepals subulate-acuminate to ovate, ciliate; glands 5 or absent. Corolla yellowish or yellow-green, rotate, ca. 5 mm in diam., glabrous or puberulent; tube ca. 1 mm; lobes oblong-ovate or ovate, ca. 1.5-2.5 × 1-1.2 mm, obtuse. Corona lobes ovoid, pouched, apex obtuse, covering base of anthers. Anther appendages rounded; pollinia globose to ovoid, horizontal. Stigma head a 5-angled plate, depressed. Follicles lanceolate to oblong-lanceolate in outline, 4-7 cm × 3-12 mm, puberulent or glabrous, apex sometimes recurved. Seeds oval, 5-7 × 2-4 mm; coma 2-3.5 cm. Fl. Apr-Aug, fr. Aug-Dec.
Forests, mixed woods, thickets; 200-1000 m. Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hunan, Sichuan, Taiwan, Yunnan [India, Myanmar, Nepal, Pakistan, Vietnam]
The roots are used for the treatment of leukemia, asthma, snake bites, and traumatic injury.
 娃儿藤Tylophora ovata

娃儿藤Tylophora ovata
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