genus Illicium ge·nu·sil·licium uncommon noun 1. anise trees: evergreen trees with aromatic leaves SynonymsIlliciumgenus Illicium Related words Broader terms magnoliid dicot genus Parts Magnoliaceae Part of anise treepurple anisestar anise WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.