genus Onopordon ge·nu·so·nopordon uncommon noun 1. a genus of Eurasian herbs of the family Compositae with prickly foliage and large purplish flowers SynonymsOnopordumgenus OnopordumOnopordongenus Onopordon Related words Broader terms asterid dicot genus Parts Compositae Part of cotton thistle WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
