Lentibulariaceae

1. Leaves ovate or broadly elliptic, entire, in a compact basal rosette; corolla blue-violet; calyx 5-lobed.

Pinguicula

1. Leaves (or leaf-like structures) filiform and mostly buried in the substrate or dissected into filiform or very narrowly linear segments and aquatic (some buried); corolla yellow to pink-purple; calyx deeply 2-lobed.

Utricularia

All species found in Lentibulariaceae

Pinguicula vulgarisBUTTERWORT 
Utricularia cornutaHORNED BLADDERWORT 
Utricularia geminiscapaBOG BLADDERWORT 
Utricularia gibbaHUMPED BLADDERWORT 
Utricularia intermediaFLAT-LEAVED BLADDERWORT 
Utricularia minorSMALL BLADDERWORT 
Utricularia purpureaPURPLE BLADDERWORT 
Utricularia radiataFLOATING BLADDERWORT 
Utricularia resupinataSMALL PURPLE BLADDERWORT 
Utricularia subulataZIGZAG BLADDERWORT 
Utricularia vulgarisCOMMON BLADDERWORT 

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. February 20, 2019. https://michiganflora.net/family.aspx?id=LENTIBULARIACEAE.