Orobanche amethystea subsp. castellana (Reut.) Rouy, Fl. France 11: 185. 1909
Orobanche amethystea subsp. castellana, Fl. France 11: 185. 1909
is new combination for Orobanche castellana in Candolle, Prodr. 11: 29. 1847
Orobanche amethystea subsp. castellana, Fl. France 11: 185. 1909