anisum, from annison, = under which the Greeks seem to have included the two plants, Anise and Dill. When these were discriminated anisum and anethum were utilised in Latin to distinguish them;
rhiza, = root.
(flavour of tuberous rootstock, used in food) (Ox, Le)
nudus, = naked, bare, unclothed, uncovered, exposed.
(naked, i.e. devoid of leaves or some other clothing, lacking usual covering, bare)
(bare, referring to the leaves which are dry at flowering) (ld, BL, An)