|
|
|
Ageratum conyzoides L.
|
English Name |
Tropic Ageratum, |
|
Latin name |
Ageratum conyzoides L. |
|
Family & Genus |
Asteraceae, Ageratum |
|
Description |
Annual herbs, 50-100cm tall, sometimes less than 10cm. Stem erect, relatively stout, multi-branched, stems and branches pale red, upper part usually green, white dusty short hairs or long hairs. Leaves mostly opposite, upper part alternate; petioles with white short hairs and yellow glands, ca. 1-3cm long; leaves 5-13cm long, 2-5cm wide, ovate, middle leaves larger, upper and lower leaves gradually smaller, mostly ovate or oblong, leaves end acute, base blunt or wide cuneate, margin with blunt teeth. Capitulums borne on top of the stem, relatively small, arranged to corymbs; pedicels ca. 0.5-1.5cm long; involucres campanulate or semi-spherical; 2 layers involucres, oblong or oblong-lanceolate, 3-4cm long; corolla 1.5-2.5cm long, pale purple, lower part is tubular, upper part 5 lobes. Achenes, black-brown, with 5 edges, with membrane-shaped pappus 5-6, 1.5-3mm long, apex suddenly narrow or gradually narrows to beak. Flowering and fruiting: whole year. |
|
Distribution |
Growing on slopes, in valleys, forests or forest margins, sometimes on grasslands or barren slopes. Distributed in Guangdong, Guangxi, Fujian, Yunnan, Guizhou and etc. Always wild or cultivated. |
|
Part Used |
Medical part: whole plant. Chinese name: Shenghongji. |
|
Harvest & Processing |
Harvested the aboveground parts in June-October, used fresh or cut into sections an dun-dried. |
|
Chemistry |
Whole plant contains flavonoid: (ageconyflavone) A, B, C, (nobiletin), (sinensetin, etc.; alkaloids: lycopsamine), echinatine, etc. and sterols, volatile oil. |
|
Pharmacology |
Anti-inflammatory, arresting pain and antibiosis. |
|
Properties & Actions |
Pungent, little bitter, cool.Clearing heat and detoxifying and arresting bleeding and pain. |
|
Indications & Usage |
Pyrexia induced by influenza, swelling and pain in the throat, empsyxis, non-traumatic hemorrhage, metrorrhagia and metrostaxis, pain in the gastric cavity and abdomen, rheumatic arthralgia.Oral administration: decocting, 15-30g; fresh products: doubled in amount; or powdered or smashed to extract juice. External application: appropriate amount, smashed; powdered to blow throat or infused with water or wine. |
|
Examples |
1. Throat diseases: fresh leaves of tropic ageratum herb 30-60g, wash clean, squeeze juice, prepare with crystal sugar and drink, 3 times each day.
2. Pyrexia due to common cold: white sweet clover 60g. Decoct in water and swallow.
3. Epistaxis: knead the fresh leaves of white sweet clover and block nose. |
|
Permanent URL：https://sys01.lib.hkbu.edu.hk/cmed/mpid/detail.php?herb_id=D00674 |
|
|
|
