Shen Collection, Upper Volume
Radical: Grass (cǎo)
藷
Kangxi Strokes: 22
Page 1067, Entry 01
Tang Rhymes (Tangyun): Pronounced zhu.
Shuowen Jiezi (Shuowen): Sugar cane.
Southern Capital Rhapsody (Nandu Fu) by Zhang Heng: Sugar cane and ginger.
Commentary: Sweet sugar cane. See the detailed entry for the character for sugar cane.
Also pronounced shu (falling-rising tone).
Broad Collection of Matters (Boya): The plant zhu-yu, also known as shu-yu (a type of yam).
Classic of Mountains and Seas (Shanhaijing): On Jing Mountain, there is an abundance of zhu-yu.
Commentary by Guo Pu: Pronounced shu. Today in the Jiangnan region, it is called simply chu, a variation in speech pronunciation.
Also, according to Jiyun: Pronounced chu (rising tone). Meaning is the same. Sometimes written in a variant form.