genus Pediocactus ge·nus·pe·diocactus uncommon noun 1. low-growing cacti of the Great Plains of North America SynonymsPediocactusgenus Pediocactus Related words Broader terms caryophylloid dicot genus Parts Cactaceae Part of Knowlton's cactus WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
