Shen Collection, Upper Volume Radical: Grass (cǎo) Sou Kangxi strokes: 16 Page 1051, Entry 01 According to the Sound Rhymes (Jiyun), pronounced sou. Souqiu refers to the appearance of prickly ash seeds clustering and growing into a fruit pod. It is also interchangeable with the character sou (marsh). According to the Classified Compilation (Leipian), pronounced chu. The meaning is the same.