Mentzelia gracilis (Rydberg) H.J. Thompson & F.H. Lewis nom. illeg.

Mentzelia gracilis (Rydberg) H.J. Thompson & F.H. Lewis nom. illeg. is a synonym sensu TROPICOS of:

Mentzelia albicaulis (Douglas) Douglas ex Torrey & A. Gray, an accepted species name sensu FNA Ed. Comm., 2016.