Utricularia macrorhiza Le Conte ex Torrey. Phen: May-Sep. Hab: Pools and ponds. Dist: NL (Newfoundland) west to AK, south to NC, SC, MS, TX, CA, and Mexico; also in e. Asia.
Origin/Endemic status: Native
Taxonomy Comments: See Taylor (1989) for a discussion of the differences between this species and U. vulgaris of Europe and w. Asia, with which it has often been combined or associated as a variety or subspecies.
Synonymy: = Ar, Il, K1, K3, Mex, Pa, S, Tn, Va, Schnell (2002b), Taylor (1989); = Utricularia vulgaris L. ssp. macrorhiza (Leconte ex Torr.) R.T.Clausen – FNA, Mi, NE, NY; < Utricularia vulgaris L. – C, F, G, GrPl, RAB, Tx, WV