Castilleja rhexiifolia var. sulphurea (Rydberg) N.D. Atwood

Castilleja rhexiifolia var. sulphurea (Rydberg) N.D. Atwood is a synonym sensu FNA Ed. Comm., 2019 of:

Castilleja septentrionalis Lindley, an accepted species name sensu FNA Ed. Comm., 2019.