Big Huang Yanggen

Pinyin name ] [ Dà Yè Huá n Yá n Gē n
[ source ]
Medicine medium source: Celastraceae Plant Euonymus root.
Latin botanical name: Euonymus japonzcus Thunb. animal fossil
Harvest and storage: Winter digging roots, wash away dirt, sliced, dried.
[ ] the original morphology of Euonymus japonicus evergreen shrubs or small trees, plant height of 3-8m. Branchlets nearly four prism. Leaves opposite; petiole ca.1m; leaf blade thickly leathery, obovate, oblong to elliptic, long 3-6cm, wide 2-3cm, apex obtuse apex, margin serrulate, base cuneate or subrounded, dark green above, pale green below. Cymes axillary, always peduncular long 2.5-3.5cm, one to two back two disambiguation branch, each diverging5-12 having a flower, grey green,4; disk mast. Capsules depressed globose, diameter of about 1cm, light red, with 4 shallow furrow; fruiting pedicels four prism. Seeds brown, orange red aril. Florescence 6-7 month, month of fruit period 9-10.
[ ] habitat distribution
Ecological environment : in the soil moist Xiangyang or garden cultivation.
Resource distribution: all over the country more cultivated as a hedge.
[ ] cultivation
Biological characteristics like mild and humid climate, cold resistance, with good drainage, fertile soil suitable for cultivation.
Cultivation techniques for seed propagation and cutting propagation. Seed propagation:9-10 month when the fruit is ripe seed, remove the seed coat, shade, should follow collect along with sow. Across the bed, covered with fine soil2cm, water moisture. The method was suitable for introduction. Cutting propagation: in the spring3-4month, select biennial branches about 20cm long, cut off the blade spacing, according to15cm× l5cm inclined inserted in the ground, slightly pressed after watering, moist. Insert after 30-40 days can colonization. According to the spacing150cm ×l00cm open point, apply sufficient base fertilizer, choose overcast plant. Oda used this method of production.
3year field management: weeding3-4 times, fertilizer combination weeding out. At early growth stage, in order to promote the growth of stem and leaf, chase is given priority to with nitrogenous fertilizer, the optimum application of farmyard manure; winter Shi farmyard manure or plant ash. The winter should pay attention to the tree trimming.
[ ] the chemical composition of the root bark of Euonymus japonicus alkali ( euojaponine ) A, C, D, F, G, I, J, K, L, M, fruits containing Holly Celastraceae sesquiterpenes esters ( ejap )2,3,4,5,6,7,10,12,13,14.
[ ] Xin bitter taste; temperature;
[ ] the liver meridian tropism
[ indications ] Huoxue Tiaojing; rheumatism. The main abnormal menstruation; dysmenorrhea; rheumatic arthralgia
[ usage]: orally taken decoction,15-30g.
[ note ] pregnant women take it carefully.
Excerpts from" Chinese Materia Medica" [ ]
http://chinese-herbal-medicines-directory.blogspot.com/