中文名（Chinese Name）：藿香蓟
学名（Scientific Name）：Ageratum conyzoides L.
英文名（English Common Name）： tropical whiteweed
别名（Chinese Common Name）：胜红蓟
异名（Synonym）：Carelia conyzoides (L.) Kuntze  Ageratum ciliare L.  Ageratum arsenei B.L.Rob.  Chrysocoma maculata Vell.  Ageratum obtusifolium Lam.  Eupatorium paleaceum Sessé & Moc.  Ageratum hirtum Lam.  Ageratum cordifolium Roxb.  Ageratum nanum Hort. ex Sch.Bip.  Alomia microcarpa (Benth. ex Benth.) B.L.Rob.  Alomia pinetorum L.O.Williams  Ageratum hirsutum Poir.  Ageratum microcarpum (Benth. ex Benth.) Hemsl.  Ageratum suffruticosum Regel  Ageratum meridanum V.M.Badillo  Cacalia mentrasto Vell.  Ageratum pinetorum (L.O.Williams) R.M.King & H.Rob.  Ageratum conyzoides f. obtusifolia (Lam.) Miq.  Ageratum conyzoides var. pilosum Blume  Ageratum latifolium var. galapageium B.L.Rob.
科属（Family & Genus）：菊科（Compositae）藿香蓟属
形态特征（Description）：一年生草本，高50-100厘米，有时又不足10厘米。无明显主根。茎粗壮，基部径4毫米，或少有纤细的，而基部径不足1毫米，不分枝或自基部或自中部以上分枝，或下基部平卧而节常生不定根。全部茎枝淡红色，或上部绿色，被白色尘状短柔毛或上部被稠密开展的长绒毛。叶对生，有时上部互生，常有腋生的不发育的叶芽。中部茎叶卵形或椭圆形或长圆形，长3-8厘米，宽2-5厘米；自中部叶向上向下及腋生小枝上的叶渐小或小，卵形或长圆形，有时植株全部叶小形，长仅1厘米，宽仅达0.6毫米。全部叶基部钝或宽楔形，基出三脉或不明显五出脉，顶端急尖，边缘圆锯齿，有长1-3厘米的叶柄，两面被白色稀疏的短柔毛且有黄色腺点，上面沿脉处及叶下面的毛稍多有时下面近无毛，上部叶的叶柄或腋生幼枝及腋生枝上的小叶的叶柄通常被白色稠密开展的长柔毛。头状花序4-18个在茎顶排成通常紧密的伞房状花序；花序径1.5-3厘米，少有排成松散伞房花序式的。花梗长0.5-1.5厘米，被尘球短柔毛。总苞钟状或半球形，宽5毫米。总苞片2层，长圆形或披针状长圆形，长3-4毫米，外面无毛，边缘撕裂。花冠长1.5-2.5毫米，外面无毛或顶端有尘状微柔毛，檐部5裂，淡紫色。瘦果黑褐色，5棱，长1.2-1.7毫米，有白色稀疏细柔毛。冠毛膜片5或6个，长圆形，顶端急狭或渐狭成长或短芒状，或部分膜片顶端截形而无芒状渐尖；全部冠毛膜片长1.5-3毫米。花果期全年。
分布（Distribution）：原产中南美洲，现我国南部已归化，生于山谷、山坡林下或林缘、河边或山坡草地、田边等处。
用途（Use）：
引自中国植物志英文版FOC Vol. 20-21 Page 879, 883
Ageratum conyzoides Linnaeus, Sp. Pl. 2: 839. 1753.
藿香蓟 huo xiang ji | Asteraceae  | Ageratum
Herbs, annual, 50-100 cm tall, sometimes less than 10 cm, with inconspicuous main root. Stems robust, ca. 4 cm in diam. at base, simple or branched from middle, stems and branches reddish, or green toward apex, white powdery puberulent or densely spreading long tomentose. Leaves often with axillary abortive buds; petiole 1-3 cm, densely white spreading villous; median leaves ovate, elliptic, or oblong, 3-8 × 2-5 cm; upper leaves gradually smaller, oblong, sometimes all leaves small, ca. 1 × 0.6 cm, both surfaces sparsely white puberulent and yellow gland-dotted, basally 3-veined or obscurely 5-veined, base obtuse or broadly cuneate, margin crenate-serrate, apex acute. Capitula small, 4-14, in dense terminal corymbs; peduncle 0.5-1.5 cm, powdery puberulent; involucre campanulate or hemispheric, ca. 5 mm in diam.; phyllaries 2-seriate, oblong or lanceolate-oblong, 3-4 mm, glabrous, margin lacerate; corollas 1.5-2.5 mm, glabrous or apically powdery puberulent; limb purplish, 5-lobed. Achenes black, 5-angled, 1.2-1.7 mm, sparsely white setuliferous; pappus scales 5 or awned, 1.5-3 mm. Fl. and fr. year-round. 2n = 20, 38, 40.
Valleys, forests, forest margins on slopes, riversides, grasslands, field margins. Cultivated and naturalized in Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Henan, Jiangsu, Jiangxi, Nanhai Zhudao, Shaanxi, Sichuan, Taiwan, Yunnan; only cultivated in Hebei and Zhejiang [native to tropical America; widespread weed throughout Africa, India, Nepal, and SE Asia].
Ageratum conyzoides is used medicinally in China to treat a variety of conditions, including common colds, headaches, boils, eczema, bleeding wounds, and burns.
中文名（Chinese Name）：藿香蓟
学名（Scientific Name）：Ageratum conyzoides L.
英文名（English Common Name）： tropical whiteweed
别名（Chinese Common Name）：胜红蓟
异名（Synonym）：Carelia conyzoides (L.) Kuntze  Ageratum ciliare L.  Ageratum arsenei B.L.Rob.  Chrysocoma maculata Vell.  Ageratum obtusifolium Lam.  Eupatorium paleaceum Sessé & Moc.  Ageratum hirtum Lam.  Ageratum cordifolium Roxb.  Ageratum nanum Hort. ex Sch.Bip.  Alomia microcarpa (Benth. ex Benth.) B.L.Rob.  Alomia pinetorum L.O.Williams  Ageratum hirsutum Poir.  Ageratum microcarpum (Benth. ex Benth.) Hemsl.  Ageratum suffruticosum Regel  Ageratum meridanum V.M.Badillo  Cacalia mentrasto Vell.  Ageratum pinetorum (L.O.Williams) R.M.King & H.Rob.  Ageratum conyzoides f. obtusifolia (Lam.) Miq.  Ageratum conyzoides var. pilosum Blume  Ageratum latifolium var. galapageium B.L.Rob.
科属（Family & Genus）：菊科（Compositae）藿香蓟属
形态特征（Description）：一年生草本，高50-100厘米，有时又不足10厘米。无明显主根。茎粗壮，基部径4毫米，或少有纤细的，而基部径不足1毫米，不分枝或自基部或自中部以上分枝，或下基部平卧而节常生不定根。全部茎枝淡红色，或上部绿色，被白色尘状短柔毛或上部被稠密开展的长绒毛。叶对生，有时上部互生，常有腋生的不发育的叶芽。中部茎叶卵形或椭圆形或长圆形，长3-8厘米，宽2-5厘米；自中部叶向上向下及腋生小枝上的叶渐小或小，卵形或长圆形，有时植株全部叶小形，长仅1厘米，宽仅达0.6毫米。全部叶基部钝或宽楔形，基出三脉或不明显五出脉，顶端急尖，边缘圆锯齿，有长1-3厘米的叶柄，两面被白色稀疏的短柔毛且有黄色腺点，上面沿脉处及叶下面的毛稍多有时下面近无毛，上部叶的叶柄或腋生幼枝及腋生枝上的小叶的叶柄通常被白色稠密开展的长柔毛。头状花序4-18个在茎顶排成通常紧密的伞房状花序；花序径1.5-3厘米，少有排成松散伞房花序式的。花梗长0.5-1.5厘米，被尘球短柔毛。总苞钟状或半球形，宽5毫米。总苞片2层，长圆形或披针状长圆形，长3-4毫米，外面无毛，边缘撕裂。花冠长1.5-2.5毫米，外面无毛或顶端有尘状微柔毛，檐部5裂，淡紫色。瘦果黑褐色，5棱，长1.2-1.7毫米，有白色稀疏细柔毛。冠毛膜片5或6个，长圆形，顶端急狭或渐狭成长或短芒状，或部分膜片顶端截形而无芒状渐尖；全部冠毛膜片长1.5-3毫米。花果期全年。
分布（Distribution）：原产中南美洲，现我国南部已归化，生于山谷、山坡林下或林缘、河边或山坡草地、田边等处。
用途（Use）：
引自中国植物志英文版FOC Vol. 20-21 Page 879, 883
Ageratum conyzoides Linnaeus, Sp. Pl. 2: 839. 1753.
藿香蓟 huo xiang ji | Asteraceae  | Ageratum
Herbs, annual, 50-100 cm tall, sometimes less than 10 cm, with inconspicuous main root. Stems robust, ca. 4 cm in diam. at base, simple or branched from middle, stems and branches reddish, or green toward apex, white powdery puberulent or densely spreading long tomentose. Leaves often with axillary abortive buds; petiole 1-3 cm, densely white spreading villous; median leaves ovate, elliptic, or oblong, 3-8 × 2-5 cm; upper leaves gradually smaller, oblong, sometimes all leaves small, ca. 1 × 0.6 cm, both surfaces sparsely white puberulent and yellow gland-dotted, basally 3-veined or obscurely 5-veined, base obtuse or broadly cuneate, margin crenate-serrate, apex acute. Capitula small, 4-14, in dense terminal corymbs; peduncle 0.5-1.5 cm, powdery puberulent; involucre campanulate or hemispheric, ca. 5 mm in diam.; phyllaries 2-seriate, oblong or lanceolate-oblong, 3-4 mm, glabrous, margin lacerate; corollas 1.5-2.5 mm, glabrous or apically powdery puberulent; limb purplish, 5-lobed. Achenes black, 5-angled, 1.2-1.7 mm, sparsely white setuliferous; pappus scales 5 or awned, 1.5-3 mm. Fl. and fr. year-round. 2n = 20, 38, 40.
Valleys, forests, forest margins on slopes, riversides, grasslands, field margins. Cultivated and naturalized in Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Henan, Jiangsu, Jiangxi, Nanhai Zhudao, Shaanxi, Sichuan, Taiwan, Yunnan; only cultivated in Hebei and Zhejiang [native to tropical America; widespread weed throughout Africa, India, Nepal, and SE Asia].
Ageratum conyzoides is used medicinally in China to treat a variety of conditions, including common colds, headaches, boils, eczema, bleeding wounds, and burns.

（责任编辑：徐晔春）