紫草科 zǐcǎokē Boraginaceae Origin Definitions Defs Strokes Stroke Words Sentences Sents 紫草 zǐcǎo gromwell Gromwell or puccoon; a perennial plant with white flowers and a thick root used as a purple dye and in traditional medicine科 kē noun family (bound form) family in biological taxonomy, ranking between order and genus