Orobanche cooperi (A. Gray) A. Heller Orobanche cooperi (A. Gray) A. Heller, Cat. N. Amer. Pl.: 7. 1898 sec. Villaseñor 2016=Orobanche multicaulis Brandegee in Univ. Calif. Publ. Bot. 6: 361. 1916 syn. sec. ???