Shen Collection, Upper Volume Radical: Grass (cǎo) 芤 Kangxi Stroke Count: 10 Page 1019, Entry 30 Jade Chapters (Yupian) reads: Pronounced kou (level tone). Collected Rhymes (Jiyun) reads: Pronounced kou (level tone). Classified Chapters (Leipian) cites the Pulse Secrets (Maijue) by the Xu family, which states: When pressure is applied, the pulse disappears; when pressure is lifted, it returns; a pulse that is firm on the sides but hollow in the middle is called kou. Also, in the Materia Medica (Bencao), the onion is also known as kou. See the note under the character for onion.