genus Sericocarpus ge·nus·se·ricocarpus uncommon noun 1. small genus of herbs of the eastern United States: white-topped asters SynonymsSericocarpusgenus Sericocarpus Related words Broader terms asterid dicot genus Parts Compositae Part of white-topped aster WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.