Shen Collection, Upper Volume Radical: Grass (cǎo) Wō; Kangxi stroke count: 15; Page 1042, Entry 01 According to the Collected Rhymes (Jiyun), pronounced wo. According to the Categorized Dictionary (Leipian), woju is a name for a vegetable. In the preface to the Poem on Planting Lettuce by Du Fu, it is written: I arranged a small bed under the hall, separated by the planting of a mat or two of lettuce, and nearly twenty days have passed. According to the Sequel to Records of Wide-Ranging Things (Xu Bowuzhi), lettuce, which comes from the state of Wo, is poisonous, and no insect dares to go near it.