Orobanche dugesii (S. Watson) Munz in Bull. Torrey Bot. Club 57: 613, t. 38, f. 3. 1931 sec. Ramírez & al. 2010
- ≡Aphyllon dugesii S. Watson in Proc. Amer. Acad. Arts 18: 132. 1883 syn. sec. ???
- =Orobanche multicaulis var. palmeri Munz in Bull. Torrey Bot. Club 57: 613, pl. 38, fig. 2. 1931 syn. sec. ???