Isoëtes flettii (A.A. Eaton) N.E. Pfeiffer

Isoëtes flettii (A.A. Eaton) N.E. Pfeiffer is a synonym sensu FNA Ed. Comm., 1993 of:

Isoetes occidentalis L.F. Henderson, an accepted species name sensu FNA Ed. Comm., 1993.