Pachyrhizus's a small genus of five or six species of tropical and subtropical plants growing from large, often edible taproots. Jícama The jícama (IPA [ˈhiːkəmə]) or yam bean (P. erosus)'s a vine widely grown for its large (10-15 cm diameter and up to 20 kg weight), spherical or elongated taproot. After removal of the thick, fibrous brown skin, the white flesh of the root can be eaten cooked or raw. Crisp, moist, and slightly sweet, the flesh draws comparison wi… (More on Pachyrhizus)