Chen Collection, Middle Volume Radical: Tree (mù) Page 509, Entry 12 Pronounced shu. According to the Explaining Graphs and Analyzing Characters (Shuowen Jiezi), this is a variant form or an abbreviated form of the character for glutinous millet (shu), referring specifically to the glutinous variety of millet. Also pronounced zhi. According to the Explaining Graphs and Analyzing Characters (Shuowen Jiezi), this is a variant form or an abbreviated form of the character for mountain thistle (ji). According to the Er Ya (Erya), the mountain thistle is known as shu. The Yang refers to the bushy thistle (fouji). According to the commentary, the variety that grows on flat land is called thistle, while the variety that grows in the mountains is called shu. According to the Materia Medica (Bencao) of Tao Hongjing, there are two types of shu: white shu, which is sweet and contains little oil, and red shu, which is bitter and contains much oil. The Er Ya identifies the bushy thistle as white shu. Note: The Explaining Graphs and Analyzing Characters classifies these in two separate radical categories—grain and grass—which is an error in the current compilation.