derives from starch refined food product arrowroot starch 2019-08-24T20:42:47Z A starch obtained from the rhizomes (rootstock) of several tropical plants, traditionally Maranta arundinacea, but also Florida arrowroot from Zamia integrifolia, and tapioca from cassava (Manihot esculenta), which is often labelled as arrowroot. arrowroot (raw)