Shen Collection, Upper Volume Radical: Grass (cǎo) Lai Kangxi Strokes: 22 Page 1067, Entry 15 Pronounced lai (falling tone) Progressing into the Classics (Tangyun) Literary Expositor (Erya), Explanation of Plants: Duckweed is known as laixiao. Note: Today it is known as laihao. Also mentioned in the Collection of Rhymes (Yunhui). Master Zhuang (Zhuangzi), In the World of Men: The shade will cover that upon which it relies. Revised Dictionary (Yupian): Also written in a variant form.