Shen Collection, Upper Volume Radical: Grass (cǎo) Chang Kangxi strokes: 14 Page 1038, Entry 03 Pronounced chang. Compendium of Materia Medica (Bencao): Changpu is a particularly lush variety of the reed family. Master Lu's Spring and Autumn Annals (Lushi Chunqiu): Fifty-seven days after the winter solstice, the changpu begins to sprout. Changpu is the first of all herbs to sprout; it begins its growth at this time. Plants of the Southern Regions (Nanfang Caomu Zhuang): Changpu growing in the Panyu region has nine segments per inch. Liu Xie, New Discourses (Xinlun): Changpu can repel fleas and lice, but it attracts house centipedes. Also, according to the Collected Rhymes (Jiyun), it is interchangeable with the character chang. Zuo Tradition (Zuo Zhuan), Thirtieth Year of Duke Xi: There were changchu served at the banquet. Textual research: In Master Lu's Spring and Autumn Annals, the original text states fifty days and seven days, and that the plant begins to grow; chang is the first of all herbs, and at this time it begins to grow. We have carefully corrected the original text to reflect this meaning.