Schaffnerella gracilis (Benth.) Nash Schaffnerella gracilis (Benth.) Nash, N. Amer. Fl. 17(2): 141. 1912 sec. Dávila & al. 2006≡Schaffnera gracilis Benth. in Hooker's Icon. Pl. 14: 59, t. 1378. 1882 syn. sec. Dávila & al. 2006