Shen Collection, Upper Volume Radical: Grass (cǎo) 苔 Kangxi strokes: 11 Page 1022, Entry 25 Pronounced tai (level tone). Moss. Huainanzi Commentary (Huainanzi zhu): Green moss is water scum. Lu Guimeng's Ode to Moss (Tai fu): On high roofs there is tile moss; there is swamp mallow. That which scatters in rocky crevices is called stone hair; that which fills empty fields is called wall clothing; that which is on houses is called xi ye; that which is in water is called zhi li. Record of Unusual Things (Shuyi ji): Moss is also known as heavy money, and called xuan xian; southerners call it gou cao. Collection of Rhymes (Jiyun): Also written in the variant form tai.