genus Eriophyllum ge·nu·se·riophyllum uncommon noun 1. genus of hairy herbs and shrubs of western North America SynonymsEriophyllumgenus Eriophyllum Related words Broader terms asterid dicot genus Parts Compositae Part of woolly sunflower WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.