 Utricularia inflata , commonly known as the swollen bladderwort , inflated bladderwort , or large floating bladderwort , is a large suspended aquatic carnivorous plant that belongs to the genus Utricularia . It is a perennial that is native to the southeastern coastal plains of the United States . It has often been confused with U. radiata , which is similar but smaller than U. inflata . Since 1980 , U. inflata has been reported to exist in locations beyond its traditional range , such as the Adirondack Mountains in New York , southeastern Massachusetts , and in Washington State . Studies on the populations in the Adirondacks suggest that an introduction of U. inflata to a location where it <unk> can lead to altered sediment chemistry by reducing the net primary productivity of native species . It is also listed by the state of Washington as a problematic species because of the dense mat @-@ forming habit of this aquatic Utricularia . It is one of the few carnivorous plants that can be invasive . 
