Descurainia richardsonii var. sonnei (B.L. Robinson) C.L. Hitchcock

Descurainia richardsonii var. sonnei (B.L. Robinson) C.L. Hitchcock 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.