Descurainia pinnata subsp. nelsonii (Rydberg) Detling

Descurainia pinnata subsp. nelsonii (Rydberg) Detling is a synonym sensu FNA Ed. Comm., 2010 of:

Descurainia nelsonii (Rydberg) Al-Shehbaz & Goodson, an accepted species name sensu FNA Ed. Comm., 2010.