Ginkgo root

[ source ]" herbal" from Chongqing.
[ ] B I Pinyin name 's Gu n I G
[ alias ] ginkgo root
[ source ]
Medicine source: Ginkgo biloba L. root or root bark.
Latin animal mineral name: Ginkgo biloba L.
[ ] the original morphology of deciduous trees, high up to 40m. Branches have long branch and short branches, tree bark grayish brown, shallow crack, old is grayish brown, with deep fissures. Leaves on long shoots spiral scattered, on short branch 3-5 ( - 8 ) clusters; handle long 3-10cm; blade fan, pale green, glabrous, with a plurality of 2 fork parallel fine veins, margin width 5-8cm, repand, sometimes central lobed or parted. Flowers unisexual, dioecious, monoecious flowers sparse; born in short branch top scaly leaf axils; male cones into catkin form, pendulous; female flowers have long stem, stem end is often divided 2 fork fork, each terminating in a disk-shaped beads, each bead seat an ovule, only a development seed. Seed drupelike, ellipsoid to subglobose, length 2.5-3.5cm, diameter of about 2cm; exocarp fleshy, with white, light yellow or orange yellow when ripe; testa bony, white, with 2-3 edge; endotesta membranaceous, endosperm copious. 3-4 month flowering, seed maturity and seed 9-10.
[ ] habitat distribution
Ecological environment : in an elevation of 500-1000m acidic soil, good drainage area of natural forest in;
Resource distribution: distribution in North Shenyang, South Guangzhou, East China, southwest to Guizhou, Yunnan has cultivated
[ character ]
1 character identification root is cylindrical, slightly curved, branching, length of up to 1mm, diameter 0.5-3.0cm, surface with longitudinal wrinkles, sallow, transverse to the lenticel and lateral root. Hard, yellow-white section, a chrysanthemum heart, radial ring. Leather belt fiber. Gas, light.
Microscopic identification of 2 cork layer obviously, cortex is wide, scattered with the fiber bundle and secretory cell. Parenchyma cells contain calcium oxalate crystals. Phloem arranged in rings, xylem parenchyma cells wide, center for.
[ ] taste Gan Wen;
[ function ] Qi tonic. The main emission; enuresis; night frequency, leucorrhea, stone.
[ usage]: orally taken decoction, 15-60g
[ note ] a true person is banned take.
Excerpts from" Chinese Materia Medica" [ ]
http://chinese-herbal-medicines-directory.blogspot.com/