Shen Collection, Upper Volume Radical: Grass (cǎo) Lei Kangxi strokes: 24 Page 1070, Entry 36 Tang Rhymes (Tangyun), Rhyme Collection (Yunhui): Pronounced lei (falling tone). Erya, Explanation of Plants (Erya, Shicao): Lei and dong. Commentary: Lei resembles a cattail but is finer. Also: Broad Collection of Notes (Boyya): Lei, signifies. Also: A place name. Commentary on the Spring and Autumn Annals (Gongyang Zhuan), Year 10 of Duke Xuan: Gongsun Zhufu led troops to invade Zhulou and took Lei. Dictionary Supplement (Zihui Bu): Sometimes pronounced kui. The character lei was originally written as composed of elements. The character was originally composed of the shell radical, not the again radical.