Wei Collection, Upper Volume Radical: Bamboo (zhú) Fao Kangxi Strokes: 13 Page 884, Entry 21 Comprehensive Rhymes (Guangyun) and Collected Rhymes (Jiyun): Pronounced fu. Explication of Written Characters (Shuowen): A reed mat. A reed mat is what is used for weaving wefts. Also, the inner lining of bamboo.