genus Hardenbergia ge·nus·har·denbergia uncommon noun 1. small genus of Australian woody vines with small violet flowers; closely related to genus Kennedia SynonymsHardenbergiagenus Hardenbergia Related words Broader terms rosid dicot genus Parts Papilionoideae Part of Western Australia coral pea WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.