Bidens bipinnata,a weed of the compositae family,is widely distributed in China,and has been used as a traditional Chinese folk medicine for a long time.

• 婆婆针(Bidens bipinnata)是菊科鬼针草属植物，民间药用历史悠久，治疗作用广泛，疗效确切，药材资源丰富。