Creeping bladderwort
(Utricularia gibba)

aka humped bladderwort, or conespur bladderwort. An uncommon carnivorous aquatic, found in shallow ponds. Leaves consist of floating mats of very thin filaments. Yellow, two-lipped, flowers rise above the water on small stalks. Subsurface bladders trap prey. MC (Lentibulariaceae)