The rootstock, which has a bitter and very acrid taste, is poisonous.
Internally the rootstock is whitish and of a spongy texture.
Description of Rootstock — The rootstock and roots are employed in medicine.
Of course, there are all gradations between a tuber and a rootstock.
Rootstock, root-like trunks or portions of stems on or under ground, 42.
Its rootstock produces ...