1. Location: Achyranthes bidentata refers to the alpine meadow growing on the Qinghai-Tibet Plateau and Gaolinshan Line, mainly produced in Qinghai, Tibet and other places. Achyranthes bidentata grows in Sichuan, Yunnan and other places, mainly in Sichuan Basin and Yunnan Plateau.

2. Appearance characteristics: There are some differences between the two kinds of Achyranthes bidentata. The root surface of Achyranthes bidentata is dark gray or dark grayish brown, cylindrical, with a diameter of about 65438 0-2 cm. The rhizome of Radix Cyathulae is long, usually gray-white, with a rough surface and a semicircular cone shape, with a length of about 5-25 cm and a diameter of about 1-2 cm.

3. Efficacy: Achyranthes bidentata has the effects of clearing away heat and toxic materials, relieving pain and swelling, promoting blood circulation and stopping bleeding, and Achyranthes bidentata has the effects of regulating menstruation and promoting blood circulation, expelling wind and relieving pain. There are some differences between the two kinds of Achyranthes bidentata.