Cay cao tdi 25m, di/Ong kinh co the tOi 70cm. Ben ngoai co lOp ban mau xam, ben trong mau vang dam. Ld moc doi k6p gom 5-13 ld ch6t hinh truTng, mep nguyen. Hoa nho khdc goc mau vang xanh. Qua chin mau tim den ; co 2-5 hat. Ra hoa vao mua ha.
- Bp phan dung
Vo cay - Cortex Phellodendri amurensis
- Thanh phan hoa hoc
Trong vo cay chufa alcaloid berberin khoang 1,6%, magnoflorin ; jatrorizin, va palmatin, candixin, menisperin.
- Tac dung sinh hoc
+ Vdi lieu 2g/kg the trong (meo) da gay me co tac dung ha huyet ap ro ret ma khong anh hddng den tim.
+ Hoang ba co tac dung ufc che tnrc khuan bach hau, ly, lao, dai trang, triTc khuan than, lien cau khuan, tu cau vang v& cung khuan hoSc loan, nam gav ngtfa ngoai da.
- Cong dung
Hoang ba dung chOfa benh dirting tieu hoa rat tot nhd benh viem ruot, benh ly, cac benh do nhiet gay ra Id lirdi, niem mac mieng hodc ngufa Id...
Hoang ba co tac dung du tien d cac bo phan a ha tieu nhir viem than, viem difting tiet nieu, viem bang quang ; dSc biet viem than ma gay tdng huyet ap thi hoang ba co nhieu iTu the hodc cac triTdng hdp viem gan mat dan den huyet ap tang. Do tac dung tif am giang hoa nen khi co sot, dau am 1 trong xi/dng ra mo hoi trom, di tinh do than hoa deu co hi?u qua.
- Chu y :
+ Khi dung chi can cao bo vo ngoai thai vat cheo sao qua. Co the dung uong trong hoac nau nifdc de tdm rufa khi bi benh ngoai da.
+ Can phan biet vdi vi nam hoang ba la vo cay nuc nac (Oroxylum indicum) cung co tac dung chuTa benh ia chay ly va di ufng ; dac biet benh hac lao, co the lay vo tt/di nuc nac xat vao cho bi benh nhieu lan.
HOANG CAM
Scutellaria baicalensis Georgi. Ho Hoa moi - Lamiaceae
- D ac d iem thufc vat
Hoang cam la loai cay nho cao do 60cm, song dai, than vuong, phan nhieu nhanh, nhan hoac co long ng&n. La moc doi, cuong ngan hoac khong cuong, mat tren mau xanh sam, di/di xanh nhat. Hoa moc thanh bong d dau canh, mau lam tim. Cay da diidc trong di thdc or ndtic ta, moc tot.
- Bq phan dung
Re-Radix Scutellariae, hien c6 ban nhieu tren thi tri/dng Viet Nam.
- Thanh phan hoa hoc
Trong hoang cam chufa cac hop chat flavonoid nhu baicalin, scutelarin, tanin, tinh dau.
- Tac dung sinh hoc
+ Tac dung ha huyet ap rat ro tren dong vat (ch6) thi nghiem, tan so tim dap giam cham lai.
+ Gian mach tai tho co lap, gian mach mdu cua than, tho.
+ Ha nhiet, loi nieu, cam mdu.
+ Ni/dc sdc ufc che triic khuan bach cau, tu cau, song cau khuan viem nao, song cau khuan viem phoi, lien cau khuan tan huyet, trifc khuan thiiong han, ho ga, ly, lao dich ta. Dang chu y tac dung nay la do phan genyl cua cac flavonoid trong hoang cam.
- Cong dung
Hoang cam la vi thuoc thanh nhiet tao thap di/oc ifij tien tac dung d thi/ong tieu (phoi) nhat la trUdng hop viem phoi, ap xe phoi con dung hoang cam de tri benh tang huyet dp co hieu qua, chuTa ho, chufa ly, ia chay, cac trifting hop chay mdu, chay mdu cam, chay mau chan rang phoi hop vdi trdc bach diep thdn, hoa hoe thdn. Dong thai chay mdu phoi hop vdi chil ma can, to nganh. Ngoai ra con dung chufa mun nhot man ngufa di ufng.
- Chu y .
+ Hoang cam bi am de bi mot trong ruot va mau vang^thiiting giam di ro ret ; tham chi xuat hien mau xanh gi dong. Khi do tac dung cua hoang cam bi giam di rat nhieu.
+ Can bao quan hoang cam a noi kho rAo thoang gid. Re hoang cam rat ctfng, khi thai thcfting dung phi/dng phap do nhanh cho mem roi mdi thai. Sau do phdi se can tien hanh sao vang ngay. Bao quan hoang cam phien d ndi thoang kho.
HOANG KY
Astragalus menbranaceus (Fish) Bunge hoac cay Hoang Ky Mong Co A. mongholcus Bunge.
Ho Dau - Fabaceae