Cylindropuntia ×fosbergii
Cylindropuntia ×fosbergii in J. Arizona-Nevada Acad. Sci. 33: 150. 2001 sec. Hunt 20161 wfo-0000632373
- ≡Opuntia ×fosbergii in Occas. Pap. Rancho Santa Ana Bot. Gard. 1(2): 79. 1938 syn. sec. Hunt 20161 wfo-0001287325
- ≡Grusonia ×fosbergii in Tephrocactus Study Group 12(3): 44. 2006 syn. sec. ??? wfo-0000509389