Sun Guan

Pinyin name ] [ Dà Yá n Gu ān
[ alias ] Tang Ju
[ source ]
Medicine medium source: as the Compositae Guangxi Ironweed root, leaf.
Latin botanical name: Vernonia chingiana Hand.-Mazz. animal fossil
Harvest and storage: collected all the year round, use fresh or dried.
[ ] the original morphology of Guangxi Ironweed climbing shrub, high 1.5-3m. Young branchlets pubescent, older branchlets brown or chestnut brown, without Mu obviously stripe and yellow sparse lenticels; buds ferruginous tomentose. Ye Husheng; short petiolate; leaf blade obovate-oblong or long elliptic ball-point shaped long, long 4-14cm, wide 1.5-6.5cm, apex acute or acuminate, rarely obtuse or mucronate, base wedge tapering into coarse0.5-1cm long petiolate, entire or front end with sparsely serrulate, often with edge very narrowly revolute, lateral veins 4-5 pairs, midvein and veinlets in the following significant protrusions, veinlets sparsely reticulate, dry, brown or yellow brown, glabrous, with Ze Ze, the following are adnate micro hair short. Capitula3-6, usually in the side branch top or solitary and axillary, arranged in a dense or dense racemes, diameter 2cm, floret majority; peduncle long 3-10mm; involucre broadly watches, long 12-15mm, wide 15-20mm, involucral bracts ca. 5layer, hard, often long on the disk, the outer ovate, inner gradually to lanceolate or oblong Phi terrain, narrowly membranous margin, all involucral bracts glabrous abaxially, edge only soft ciliate; receptacle with slightly raised, diameter 4-5mm, with a honeycomb hole; flowers numerous, all strong, corolla tubular, white, tubular minister 10-11mm, a short, broadly campanulate. Achene is cylindrical, long 7-9mm, with 7not obvious longitudinal ribbed, glabrous or distally was sparse small hair; crested yellow or yellowish brown, the 2 layer, the outer layer short, brown hairy, apex is about 12mm long, flat, with dense fine tooth. Fruit period5-9 month.
[ ] habitat distribution
Ecological environment : in elevation of 400-770m mountain woodland, or on rocks, on hillslopes.
Resource distribution: located in Guangxi, Guizhou.
[ ] taste bitter cold;
[ ] functions of heat-clearing and detoxicating; antispasmodic. Primary infantile convulsion; sore; swollen red eyes
[ usage]: orally taken decoction,3-6g. External: amount, trace and apply.
Excerpts from" Chinese Materia Medica" [ ]
http://chinese-herbal-medicines-directory.blogspot.com/