Solidago speciosa subsp. speciosa var. rigidiuscula Torrey & A. Gray

Solidago speciosa subsp. speciosa var. rigidiuscula Torrey & A. Gray is a synonym sensu FNA Ed. Comm., 2006b of:

Solidago rigidiuscula (Torrey & A. Gray) Porter, an accepted species name sensu Semple, 2013.