Davallia formosana

Pinyin name ] [ Dà YèG ǔSu ìB ǔ
[ source ]
Medicine medium source: davalliaceae plant Davallia formosana.
Latin botanical name: Davallia divaricata Bl. animal minerals ( D.formosana Hayata; D.orientalis C.Chr. )
Harvest and storage: the year may collect dig, generally4-8 months of digging, go to net soil, removal of attached leaves, fresh or dried, or cooked and dried in the sun, or use fire to furry.
[ ] the original morphology of plants with high50-150cm. Roots thick, be, together with the base of petiole densely light brown, lanceolate scales, edge of micro gear. Ye Jinsheng; glabrous, petiole length30-50cm, to smooth; leaves triangular, length, width of about 60-80cm, apex acuminate and pinnatifid apex pinnate, following four or five back to pinnatifid; pinnae are long handle, base1to the utmost, long 20-30cm, wide 12-18cm, middle pinnae tapering; pinnules have short shank; ultimate segments often split into2unequal tooth. Sori borne on distal bifurcation most, small veins of the base, along the ultimate segments each tooth of each of the 1; indusia cup shaped, apex truncate, a golden luster.
[ ] habitat distribution
Ecological environment: epiphytic in elevation of 600-700m valley forests tree or rock.
Resource distribution: located in Fujian, Taiwan, Guangdong, Hainan, Guangxi, Yunnan and other places.
[ character ]
1character identification roots cylindrical, usually twisted, length 4-15cm, diameter 1cm. Surface red brown to brown, with conspicuous longitudinal striation and circular protrusions of the leaf base mark, and residues of yellow brown scales. Qualitative hard, not easy to break, section slightly flat, reddish brown, with yellow spots a plurality of split columns, arranged in a ring, a center 2large. Gas micro, astringent.
Microscopic cross section2roots: epidermal1 rows of flattened cells, outer cuticle, epidermis scales was born in the depression. Fundamental tissue parenchyma cells of the cell wall and wavy bend. Bundle the week of tough,14-20hash into the ring, a 2 center is larger, has a crescent-shaped; each bundle are provided outside the endothelial layer, by1 columns of cells; catheter polygon. Parenchyma cells contain starch grains.
[ ] in the chemical composition of rhizome containing three terpene components of Rhizoma Drynariae acid ( davallic: acid ),24- to -4a fern (23),9(11) - diene (24-norferna-4(23),9(11) -diene ), Hepa -21- Xi (hop-21-ene), Hepa -22(29) - olefin ( hop-22(29) -ene ), new Hepa -12- Xi (neohop-12-ene ); the xanthan -3- alcohol glycoside and cyanidin glycosides composition: original L - epicatechin -3-O-β -D- glucopyranosyl Arlo glycoside ( epicate-chin-3-O-β -D-allopyranoside ), -3-O-β -D- glucopyranosyl L d-catechin Arlo glycoside ( catechin-3-O-β -D-allopy, ranoside ) - epicatechin -3-O- β-D- (2-O- vanilloyl ) ( epicatechin-3-O- β-D- pyran Arlo glycoside (2-O-vanillyl ) allopyranoside ), on a epicatechin -3-O- β-D- (3-O- vanilloyl ) ( epicatechin-3-O- β-D- pyran Arlo glycoside (3-O-vanillyl ) allopyranoside ), Haraa Chakikusu -2,3-O-D- β- pyran Arlo glycoside (procyanidinβ -2,3-O- β-D-allopyranoside ), table Fu d-catechin - (4 β- > 8) - epicatechin -3-O-β -D- glucopyranosyl Arlo glycoside ( epiafzelechin- (4 β- 8) -epicatechin-3-O- β-D-allopyranoside ), epicatechin - (4 β- > 8) - epicatechin (4 β- > 8) - catechin -3-O-β -D- glucopyranosyl allose Glycosides ( epicatechin- (4 β,8) -epicatechin- (4 β- 8) -catechin3-O- β-D-allopyranoside ), Haraa Chakikusu ( procyanidin ), trimeric procyanidin ( trimeric procyanidin );4 β- methyl - ( - ) - epicatechin (4 β -carboxymethyl- ( - ) -epicatechin ) and potassium, sodium salt;4 β- methyl - ( - ) - catechin ester table (4 β -carboxymethyl- ( - ) -epicatechin methylester ), epicatechin - (4 β- 8) -4 β- methyl epicatechin ( epicatechin- (4 β- 8) -4 β-carboxymethylepicatechin ) and potassium, sodium, epicatechin - (4 β- > 6) - epicatechin - (4 β- > 8) - epicatechin - (4 β- > 6) - epicatechin ( epicatechin- (4 β,6(4) -epicatechinβ-epicatechin- (4→ 8)→-epicatechin )β6); leaves are sinistral - table. The sperm -3-O-β -D- glucopyranosyl a Los glycoside, L - epicatechin -3-O- β-D- (2- trans - cinnamoyl ) - pyran Arlo glucoside ( epicatechin-3-O-β -D- (2-trans-cinnamoyl ) -allopyranoside ) and L - epicatechin -3-O- β-D- (3- trans - cinnamoyl ) - pyran Arlo glucoside ( epicatechin-3-O-β -D- (3-trans-cinnamoyl -allopyranoside ) ).
[ ] bitter taste; temperature
[ indications ] Huoxue Huayu Bushen Zhuanggu; dispelling wind and relieving pain. The main injuries; lumbago due to deficiency of the kidney; rheumatoid arthritis
[ usage]: orally taken decoction,10-15g.
Excerpts from" Chinese Materia Medica" [ ]
http://chinese-herbal-medicines-directory.blogspot.com/