无根藤Cassytha filiformis
中文名（Chinese Name）：无根藤
学名（Scientific Name）：Cassytha filiformis L.
英文名（English Common Name）：devil's gut
别名（Chinese Common Name）：无头草、无爷藤
异名（Synonym）：Cassytha americana var. brachystachya Meisn. Calodium cochinchinensis Lour. Cassytha americana var. brasiliensis (Mart. ex Nees) Meisn. Cassytha americana var. puberula Meisn. Cassytha americana Nees Cassytha aphylla Raeusch. Cassytha archboldiana C.K.Allen Cassytha brasiliensis Mart. ex Nees Cassytha corniculata Burm.f. Cassytha cuscutiformis F. Muell. Cassytha dissitiflora Meisn. Cassytha filiformis f. pycnantha Domin Cassytha filiformis var. pseudopubescens Domin Cassytha guineensis Schumach. & Thonn. Cassytha lifuensis Guillaumin Cassytha macrocarpa Guillaumin Cassytha novoguineensis Kaneh. & Hatus. Cassytha senegalensis A.Chev. Cassytha timoriensis Gand. Cassytha zeylanica Gaertn. Rumputris fasciculata Raf. Spironema aphylla Raf. Volutella aphylla Forssk.
科属（Family & Genus）：樟科（Lauraceae）无根藤属
形态特征（Description）：寄生缠绕草本，借盘状吸根攀附于寄主植物上。茎线形，绿色或绿褐色，稍木质，幼嫩部分被锈色短柔毛，老时毛被稀疏或变无毛。叶退化为微小的鳞片。穗状花序长2-5厘米，密被锈色短柔毛；苞片和小苞片微小，宽卵圆形，长约1毫米，褐色，被缘毛。花小，白色，长不及2毫米，无梗。花被裂片6，排成二轮，外轮3枚小，圆形，有缘毛，内轮3枚较大，卵形，外面有短柔毛，内面几无毛。能育雄蕊9，第一轮雄蕊花丝近花瓣状，其余的为线状，第一、二轮雄蕊花丝无腺体，花药2室，室内向，第三轮雄蕊花丝基部有一对无柄腺体，花药2室，室外向。退化雄蕊3，位于最内轮，三角形，具柄。子房卵珠形，几无毛，花柱短，略具棱，柱头小，头状。果小，卵球形，包藏于花后增大的肉质果托内，但彼此分离，顶端有宿存的花被片。花、果期5-12月。
分布（Distribution）：产云南、贵州、广西、广东、湖南、江西、浙江、福建及台湾等省区。生于海拔980-1600米山坡灌木丛或疏林中。热带亚洲、非洲和澳大利亚也有。
用途（Use）：本植物对寄主有害，但全草可供药用，功能化湿消肿，通淋利尿，治肾炎水肿、尿路结石、尿路感染、跌打疖肿及湿疹，又可作造纸用的糊料。
引自植物志英文版：FOC Vol. 7 Page 254
Cassytha filiformis Linnaeus, Sp. Pl. 1: 35. 1753.
无根藤 wu gen teng | Lauraceae | Cassytha
Stem green-brown, filiform, slightly woody, rusty pubescent when young but sparsely pubescent or glabrous when mature. Leaves reduced to minute scales. Spike ca. 2.5 cm, densely rusty pubescent; bracts and bracteoles brown, minute, broadly ovate, ca. 1 mm, ciliate. Flowers white, small, less than 2 mm, sessile. Perianth lobes 6, in 2 series, outer 3 small, orbicular, ciliate, inner 3 larger, ovate, all pubescent outside, subglabrous inside. Fertile stamens 9; filaments of 1st whorl subpetaloid, those of 2nd and 3rd whorls filiform, of 3rd whorl each with 2 stalkless glands, others glandless; anthers 2-celled; cells of 1st and 2nd whorls introrse, those of 3rd whorl extrorse. Staminodes 3, stalked. Ovary ovoid, subglabrous; style short, slightly angled; stigma small, capitate. Fruit small, ovoid, included in dilated and fleshy perianth tube after anthesis, free, with persistent lobes on top. Fl. and fr. May-Dec.
Thickets or sparse forests on mountain slopes; near sea level to 1600 m. Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hunan, Jiangxi, Taiwan, Yunnan, Zhejiang [tropical regions of Africa, Asia, and Australia].
This pantropical species is harmful to its host plants. The whole plant is used by local people as a diuretic and as a paste for paper-making.
（责任编辑：徐晔春）
学名（Scientific Name）：Cassytha filiformis L.
英文名（English Common Name）：devil's gut
别名（Chinese Common Name）：无头草、无爷藤
异名（Synonym）：Cassytha americana var. brachystachya Meisn. Calodium cochinchinensis Lour. Cassytha americana var. brasiliensis (Mart. ex Nees) Meisn. Cassytha americana var. puberula Meisn. Cassytha americana Nees Cassytha aphylla Raeusch. Cassytha archboldiana C.K.Allen Cassytha brasiliensis Mart. ex Nees Cassytha corniculata Burm.f. Cassytha cuscutiformis F. Muell. Cassytha dissitiflora Meisn. Cassytha filiformis f. pycnantha Domin Cassytha filiformis var. pseudopubescens Domin Cassytha guineensis Schumach. & Thonn. Cassytha lifuensis Guillaumin Cassytha macrocarpa Guillaumin Cassytha novoguineensis Kaneh. & Hatus. Cassytha senegalensis A.Chev. Cassytha timoriensis Gand. Cassytha zeylanica Gaertn. Rumputris fasciculata Raf. Spironema aphylla Raf. Volutella aphylla Forssk.
科属（Family & Genus）：樟科（Lauraceae）无根藤属
形态特征（Description）：寄生缠绕草本，借盘状吸根攀附于寄主植物上。茎线形，绿色或绿褐色，稍木质，幼嫩部分被锈色短柔毛，老时毛被稀疏或变无毛。叶退化为微小的鳞片。穗状花序长2-5厘米，密被锈色短柔毛；苞片和小苞片微小，宽卵圆形，长约1毫米，褐色，被缘毛。花小，白色，长不及2毫米，无梗。花被裂片6，排成二轮，外轮3枚小，圆形，有缘毛，内轮3枚较大，卵形，外面有短柔毛，内面几无毛。能育雄蕊9，第一轮雄蕊花丝近花瓣状，其余的为线状，第一、二轮雄蕊花丝无腺体，花药2室，室内向，第三轮雄蕊花丝基部有一对无柄腺体，花药2室，室外向。退化雄蕊3，位于最内轮，三角形，具柄。子房卵珠形，几无毛，花柱短，略具棱，柱头小，头状。果小，卵球形，包藏于花后增大的肉质果托内，但彼此分离，顶端有宿存的花被片。花、果期5-12月。
分布（Distribution）：产云南、贵州、广西、广东、湖南、江西、浙江、福建及台湾等省区。生于海拔980-1600米山坡灌木丛或疏林中。热带亚洲、非洲和澳大利亚也有。
用途（Use）：本植物对寄主有害，但全草可供药用，功能化湿消肿，通淋利尿，治肾炎水肿、尿路结石、尿路感染、跌打疖肿及湿疹，又可作造纸用的糊料。
引自植物志英文版：FOC Vol. 7 Page 254
Cassytha filiformis Linnaeus, Sp. Pl. 1: 35. 1753.
无根藤 wu gen teng | Lauraceae | Cassytha
Stem green-brown, filiform, slightly woody, rusty pubescent when young but sparsely pubescent or glabrous when mature. Leaves reduced to minute scales. Spike ca. 2.5 cm, densely rusty pubescent; bracts and bracteoles brown, minute, broadly ovate, ca. 1 mm, ciliate. Flowers white, small, less than 2 mm, sessile. Perianth lobes 6, in 2 series, outer 3 small, orbicular, ciliate, inner 3 larger, ovate, all pubescent outside, subglabrous inside. Fertile stamens 9; filaments of 1st whorl subpetaloid, those of 2nd and 3rd whorls filiform, of 3rd whorl each with 2 stalkless glands, others glandless; anthers 2-celled; cells of 1st and 2nd whorls introrse, those of 3rd whorl extrorse. Staminodes 3, stalked. Ovary ovoid, subglabrous; style short, slightly angled; stigma small, capitate. Fruit small, ovoid, included in dilated and fleshy perianth tube after anthesis, free, with persistent lobes on top. Fl. and fr. May-Dec.
Thickets or sparse forests on mountain slopes; near sea level to 1600 m. Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hunan, Jiangxi, Taiwan, Yunnan, Zhejiang [tropical regions of Africa, Asia, and Australia].
This pantropical species is harmful to its host plants. The whole plant is used by local people as a diuretic and as a paste for paper-making.
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