genus Brunfelsia ge·nusb·run·felsia uncommon noun 1. genus of tropical American shrubs grown for their flowers followed by fleshy berrylike fruits SynonymsBrunfelsiagenus Brunfelsia Related words Broader terms asterid dicot genus Parts Solanaceae Part of lady-of-the-night WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.