- From which woody shrub with edible roots is tapioca derived? - Source of tapioca - A shrubby euphorbiaceous plant of the genus Manihot, with
fleshy rootstocks yielding an edible starch; -- called also manioc. - A nutritious starch obtained from the rootstocks of the
cassava plant, used as food and in making tapioca.
- An umbelliferous plant (Sium, / Pimpinella, Sisarum). It
is a native of Asia, but has been long cultivated in Europe for its
edible clustered tuberous roots, which are very sweet.