Chinese herbal medicine. Urticaceae perennial herbaceous plant glutinous rice ball dry with roots of the whole grass. Produced in Sichuan, Guizhou, Zhejiang and other places. The root is stout, fleshy, conical, with branched roots, the surface light reddish brown, not easy to break, the section is slightly rough, light brownish yellow. Stem yellow-brown. Leaves much broken, dark green, rough with hairs. Can be harvested throughout the year. Sex flat, taste sweet, slightly bitter, cool, non-toxic. Decoction of soup for internal use, or stewed meat, or pounded compress, with heat detoxification, spleen, stop bleeding effect.