genus Pyxidanthera ge·nus·py·xidanthera uncommon noun 1. 1 species: pyxie; the eastern United States SynonymsPyxidantheragenus Pyxidanthera Related words Broader terms dilleniid dicot genus Parts Diapensiaceae Part of pyxie WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.