Descurainia richardsonii var. viscosa (Rydberg) M. Peck

Descurainia richardsonii var. viscosa (Rydberg) M. Peck is a synonym sensu FNA Ed. Comm., 2010 of:

Descurainia incisa (Engelmann ex A. Gray) Britton subsp. incisa, an accepted subspecies name sensu FNA Ed. Comm., 2010.