Shen Collection, Upper Volume Radical: Grass (cǎo) 蘚 Kangxi Strokes: 23 Page 1069, Entry 13 Tang Rhymes (Tangyun) states: Pronounced xian (falling tone), same sound as xian (rising tone). Refers to moss-like plants. Materia Medica (Bencao) records: Wu-you, also known as tile moss. Records of Strange Tales (Shuyiji) records: Moss grass is also called xuan-xian. Collection of Rhymes (Yunhui) states: Xian is wall-growth. Another theory says it is a name for a type of white grass.