Dipsacus asperoides,radix dipsaci,Wild Teasel,chuan xu duan,Dipsaci Radix,Dipsacus Asperoides C.Y.Cheng,Dipsacus Asper,chuanduanxu (1000 g(2.20 Pound))

Description

Chuanduan is continuously cylindrical, slightly flat, some slightly curved, 5~15cm long and 0.5~2cm in diameter. The surface is grayish brown or yellowish brown, with slightly twisted or obviously twisted longitudinal wrinkles and grooves, and transverse split lenticels and a few fibrous roots can be seen. It is soft, hard and easy to break after being placed for a long time. The section is uneven, the skin is dark green or brown, the outer edge is brown or light brown, the wood is yellowish brown, and the duct bundles are arranged radially. It tastes bitter, sweet and astringent. It is slightly warm and tastes bitter and pungent.