conditions it thrives in. Rice, the Washington Department of Ecology, and the United States Geological Survey's Nonindigenous Aquatic Species information resource all indicate that cultivation of this species is suspected as the most likely source of its introduction into Horseshoe Lake in Washington. The spread from lake to lake in Washington is probably the result of waterfowl moving from lake to lake and carrying plants or propagules with them.Rice, Barry. (2007). Are any carnivorous plants "noxious"?. The Carnivorous Plant FAQ. Accessed online: 25 December 2007. Botanical history Utricularia inflata was first named and described by Thomas Walter in 1788. U. radiata has often been mistaken for U. inflata because of their similar morphology and overlapping distribution. In the past, U. radiata has been misidentified as U. inflata or placed at the rank of variety. U. radiata was first identified by Alvan Wentworth Chapman in 1860 as U. inflata var. minor and noted that it was "in every way smaller" than U. inflata. John Kunkel Small in 1903 was the first to elevate U. inflata var. minor to the species level under the name U. radiata. Further studies of the two taxa were mixed on how to treat them. In 1950, Merritt Lyndon Fernald treated them as two varieties of the same species while Henry Gleason considered them to be different, but allied species in 1952. In 1962, Grady Reinert and R. K. Godfrey further supported the separation of the two taxa into different species. Peter Taylor's authoritative monograph of the genus in 1989 solidified the distinctiveness of the two species. See also List of Utricularia species References External links Utricularia inflata at the Michigan State University's Natural Features Inventory website, which includes information on the one collection of U. inflata'' in Michigan. inflata Carnivorous plants of North America Flora of the Northeastern United States Flora of the Southeastern United States Flora without expected TNC conservation status