栏目

大蝎子草Girardinia diversifolia (Link) Friis

大蝎子草Girardinia diversifolia (Link) Friis

别名:大钱麻;掌叶蝎子草;蝎子草;火麻草;红火麻;大荨麻;白活麻草;大荃麻;虎掌荨麻;

科名:荨麻科 Urticaceae

属名:蝎子草属 Girardinia

《中国植物志》第23(2)卷050页
  1.大蝎子草(中国经济植物志)大荨麻(昆明),虎掌荨麻(云南腾冲),掌叶蝎子草(湖北植物志)图版9: 1-3
  Girardinia diversifolia (Link) Friis in Kew Bull. 36 (1): 145, f. 3-4. 1981, p. max. p. excl. syn. G. formo sa na, G. chingiana et specim. Bretschneider 1957; Grierson et Long, Fl. Bhutan 1 (1): 111. 1983. ——Urtica palmata Forssk. Fl. Aegypt. -Arab. 159. 1775, non G. palmata BI. ——U. heterophylla Vahl, Symb. Bot. 1: 76. 1790, nom. illegit. superf l. ——U. heterophylla D. Don, Prodr. Fl. Nepal. 59. 1825, nom. illegit. non Vahl (1790). ——G. heterophylla (Vahl) Decne. in Jacquem. ,Voy. Bot. 4: 151, t. 153. 1841; Wedd. in DC. Prodr. 16 (1): 100. 1869; Bl. Mus. Bot. Lugd. -Bat. 2: 158. 1855; Hook. f. Fl. Brit. Ind. 5: 550. 1888; Gagnep. in Leconte, Fl. Gen. Indo-Chine 5: 854, f. 99. 1929. ——G. leschenaultiana Decne. 1. c. 152. 1844; Wight, Ic. Pl. Ind. Or. 6: t. 1976. 1853; Wedd. in Ann. Sci. Nat. Bot. Ser. 4, 1: 181. 1854, et Monogr. Urtic. 165. 1856. ——Urtica condensata Steud. in Flora 33: 260. 1850. ——Girardinia vitifolia Wedd. in Ann. Sci. Nat. Bot. Ser. 4, 1: 181. 1854. ——G. palmata Bl. Mus. Bot. Lugd. -Bat. 2: 158. 1855, non U. palmate Forssk. , nom. illegit. superfl. ; Wedd. in DC. Prodr. 16 (1): 101. 1869; C. H. Wright in Journ. Linn. Soc. Bot. 26: 475. 1899; Diels in Bot. Jahrb. 29: 302. 1901; Levl. Cat. Pl. Yunnan 275. 1915; Hand. -Mazz. Symb. Sin. 7: 119. 1929; Backer et Bakh. f. Fl. Jav. 2: 39. 1965; Hara, Fl. East. Himal. 59. 1966; 中国高等植物图鉴1: 508. 1015. 1972; 湖北植物志1: 163. 图208. 1976. p. p. ; 西藏植物志1: 534. 1983. 云南种子植物名录, 上册, 725. 1984; 贵州植物志4: 11,图版4. 1989. 一?G. condensate (Steud.) Wedd. in Ann. Sci. Nat. Bot. Ser. 4, 1: 181, 1854, et in DC. Prodr. 16 (1): 103. 1869; Diels in Bot. Jahrb. 29: 302. 1091. ——G. vitifolia Franch. in Nouv. =Arch. Mus. Hist. Nat-Ser. 2, 10: 80. 1887, nom. illegit.,non Wedd. (1854) ; Levl. Cat. Pl. Yunnan 275. 1915. ——Urtica buraei Levl. in Bull. Soc. Bot. France 51: cxliv. 1904, et Fl. Kouy-Tcheou 434. 1915. ——G. longispica Hand. -Mazz. in Sinensia 2: 133. 1932. ——G. palmata (Forsk.) Gaudich. subsp. ciliata C. J. Chen in Acta Bot. Yunnan. 4 (4): 332. 1982. ——G. longispica Hand. -Mazz. subsp. con ,ferta C. J. Chen 1. c. 333.
  多年生高大草本,茎下部常木质化;茎高达2米,具5棱,生刺毛和细糙毛或伸展的柔毛,多分枝。叶片轮廓宽卵形、扁圆形或五角形,茎干的叶较大,分枝上的叶较小,长和宽均8-25厘米,基部宽心形或近截形,具(3-) 5-7深裂片,稀、不裂,边缘有不规则的牙齿或重牙齿,上面疏生刺毛和糙伏毛,下面生糙伏毛或短硬毛和在脉上疏生刺毛,基生脉3条;叶柄长3-15厘米,毛被同茎上的;托叶大,长圆状卵形,长10-30毫米,外面疏生细糙伏毛。花雌雄异株或同株,雌花序生上部叶腋,雄花序生下部叶腋,多次二叉状分枝排成总状或近圆锥状,长5-11厘米;雌花序总状或近圆锥状,稀长穗状,在果时长10-25厘米,序轴上具糙伏毛和伸展的粗毛,小团伞花枝上密生刺毛和细粗毛。雄花近无梗:在芽时直径约1毫米,花被片4,卵形,内凹,外面疏生细糙毛;退化雌蕊杯状。雌花长约0.5毫米:花被片大的一枚舟形,长约0.4毫米(在果时增长到约1毫米)先端有3齿,背面疏生细糙毛,小的一枚条形,较短;子房狭长圆状卵形。瘦果近心形,稍扁,长约2.5-3毫米,熟时变棕黑色,表面有粗疣点。花期9-10月,果期10-11月。
  产西藏、云南、贵州、四川、湖北。生于山谷、溪旁、山地林边或疏林下。分布于中南半岛和马来半岛、尼泊尔、锡金、印度北部、印度尼西亚爪哇和埃及。
  本种分布较广,形态变异很大,除叶形和托叶形的变异外,有的茎、叶柄和序轴被向上贴生的细糙毛,有的则被伸展的粗毛。产云南、贵州(贞丰、威宁)及四川(宝兴)的部分标本子房与果实边缘生刚毛。
形态特征:多年生直立草本,高约1m余;全株被疏糙毛和尖锐刺状刺毛。叶互生,阔卵形至扁圆形,长8—15cm,基部圆形、截形或心形,先端不裂或3—5裂。穗状花序腋生,花几无柄。瘦果灰棕色,扁圆形,花柱缩存。种子扁形。花期6-11月。
地理分布:分布于湖北、四川、云南、贵州、广西等省区。
生   境:生于低山、丘陵山坡向阳处,略边及草丛中。
毒   性:刺毛有毒,接触皮肤后刺痛难忍[A-11]。
化学成分:刺毛中含有乙酰胆碱,5—羟色胺和组胺[8-10]。
毒   理:刺毛中含有乙酰胆碱,5—羟色胺和组胺[8-10]。
属中文名:蝎子草属
属拉丁名:Girardinia
科中文名:荨麻科
科拉丁名:Urticaceae
本科概述:本科约45属550种以上,广布于热带至温带地区。我国产22属250余种,全国均有分布。主要有毒属是荨麻属(UrticaL.)、树火麻属(DendrocnideMiq.)和蝎子草属(GirardiniaGaud.),如荨麻、狭叶荨麻、圆齿树火麻等多为常见有毒植物。它们通常有刺毛,使人望而生畏。其毒性是皮肤接触后立即引起刺激性皮炎,主要症状有搔痒、严重烧痛感、红肿,有如荨麻疹状。异株荨麻(U.Dioica)等植物的刺毛中含蚁酸、乙酰胆碱、组胺和5—羟色胶等可引起皮肤刺激的物质[1-4],但主要致痛物可能是未知物[5-7]。荨麻科植物刺毛对皮肤的损伤是机械和化学作用的结合。刺毛的末端是一种带刺的薄壁球状细胞,细胞壁含硅,质脆,当接触皮肤时,球状物破裂,粗糙的末端刺破皮肤,含有多种活性成分的刺毛内含物随之注入,从而产生烧痛、肿胀等症状[5]。本科部分植物的茎皮纤维柔韧,是纺织和造纸的原料,如萱麻(Boehmerianivea(L.)Gaud.)等。

《Flora of China》 Vol. 5 (2003)
Girardinia diversifolia  (Link) Friis
大蝎子草   da xie zi cao
Herbs, annual or perennial, dioecious or monoecious. Stems often woody at base, straight, branched or not, 5-angled, 25-200 cm tall; stems and petioles spreading pubescent and armed with stinging and stigose hairs. Stipules oblong-ovate, 1-3 cm, sparsely strigose abaxially; petiole 2-15 cm; leaf blade light green, elliptic, ovate or oblate in outline, sometimes 3-lobed, 5-25 × 4-23 cm, herbaceous, 3-veined, lateral veins 3-5 each side, anastomosing before margin, abaxially sparsely pubescent and with armed stinging and setulose hairs, adaxially sparsely appressed strigose and armed with short stinging hairs, base cordate or subtruncate, margin usually 3, 5, or 7-lobed or, rarely, regularly serrate or sometimes doubly serrate at leaf base, apex short acuminate or acute; cystoliths minutely punctiform. Glomerules densely armed with stinging hairs. Male inflorescences in proximal axils, spicate, cymose-racemose or subpaniculate, 5-11 cm; female ones in distal axils of stem or in same axils as male, sometimes solitary, racemelike or paniculate, rarely long spicate, 1-28 cm, strigose and spreading hirsute. Male flowers subsessile or pedicellate, in bud 1 mm; perianth lobes 4, ovate, concave, setulose abaxially, apex acute, stamens 4; rudimentary ovary cupular. Female flowers ca. 0.5 mm; perianth lobes unequal, the larger connate lobe cymbiform, 0.4 mm, enlarged to 1 mm at fruit, sparsely strigillose on outside, apex 3-toothed, the smaller lobe linear. Achene dark brownish to gray-brown, subcordate to broadly ovoid, slightly compressed, 1.5-3 mm in diam., conspicuously verrucose. Fl. Sep-Oct, fr. Oct-Nov.
Forest margins, shady moist places, along streams, disturbed places, near villages; (?100-)300-2800 m. Chongqing, Gansu, Guizhou, Hebei, W Henan, Hubei, NW Hunan, Jiangxi, Jilin, Liaoning, E Nei Mongol, S Shaanxi, Sichuan, Taiwan, S Xizang, Yunnan, Zhejiang [Bhutan, India, Indonesia, Korea, Malaysia, Nepal, Sikkim, Sri Lanka; Africa (including Madagascar)].

【拼音名】 Dà Xiē Zi Cǎo
【别名】 大荨麻,大荃麻、蝎子草
【来源】 荨麻科蝎子草属植物大蝎子草Girardinia palmata (Forsk.) Gaud.,以全草入药。全年可采,鲜用或晒干。
【性味】 苦、辛,凉。有毒。
【功能主治】 祛痰,利湿,解毒。用于咳嗽痰多,水肿。外用治疮毒。
【用法用量】 鲜品0.5~1两;外用适量煎水洗。
【备注】 (1)蜇毛其有毒成分为高浓度的酸类,能刺激皮肤引起烧痛,红肿,有如荨麻疹症状。可用肥皂水或苏打水洗涤,内服苯海拉明25毫克,日服3次。
【摘录】 《全国中草药汇编》

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