Also known as Chinese Green Ox Gall and colloquially called Mountain-Crossing Dragon. A miraculous herb for relaxing tendons, promoting blood circulation, dispelling wind, and relieving pain. Especially effective for bruises, sprains, and post-fracture recovery. Li Jiao recognized it among the old man's dead branches and bought all five bundles for forty cents, unaware it could be extremely valuable for Qin Lie's leg recovery.