khó͘-chháu苦草

an herb used in traditional Chinese medicine

an herb used in traditional Chinese medicine to treat mouth ulcers, and to reduce "heat"

English Wiktionary, “苦草” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E8%8B%A6%E8%8D%89 · confidence: Medium (Wiktionary)