Roldana gonzaleziae (B.L. Turner) B.L. Turner Roldana gonzaleziae (B.L. Turner) B.L. Turner, Phytologia. 80(4). 1996 sec. Villaseñor & al. 2005≡Senecio gonzaleziae B.L. Turner, Phytologia. 57(5). 1985 syn. sec. Villaseñor & al. 2005