Grindelia hirsutula subsp. rubricaulis (de Candolle) D.D. Keck

Grindelia hirsutula subsp. rubricaulis (de Candolle) D.D. Keck is a synonym sensu FNA Ed. Comm., 2006b of:

Grindelia hirsutula Hooker & Arnott, an accepted species name sensu Bartoli & Tortosa, 2012.