藨草 biāocǎo triquetrous bulrush Origin Definitions Defs Strokes Stroke Words Sentences Sents 藨 biāo bulrush (bound form) a type of water plant with a three-angled stem, used in making paper, mats, and shoes; specifically 藨草 biāocǎo草 cǎo noun grass grass; straw; herbs; plants with non-woody stems