1, Achyranthes bidentata is a perennial herb with a height of 70-120cm; The root is cylindrical, with a diameter of 5- 10 mm and khaki; Stems angular or square, green or purplish, white attached or spreading pilose, or nearly glabrous, with opposite branches.

2, efficacy: removing blood stasis and dredging channels, nourishing liver and kidney, strengthening bones and muscles, diuresis and stranguria, leading blood downward.

3, function: used for amenorrhea, dysmenorrhea, waist and knee pain, muscle weakness, stranguria, edema, headache, dizziness.