Opuntia megacantha Salm-Dyck, Hort. Dyck.: 363. 1834 sec. Guzmán & al. 2003
- =Opuntia amyclaea Ten., Fl. neapol. prodr. app. 5: 15. 1826 syn. sec. Guzmán & al. 2003
- =Opuntia castillae Griffiths in Rep. (Annual) Missouri Bot. Gard. 19: 261. 1908 syn. sec. Guzmán & al. 2003
- =Opuntia incarnadilla Griffiths in Rep. (Annual) Missouri Bot. Gard. 22: 27. 1911 syn. sec. Guzmán & al. 2003
- =Opuntia albicarpa Scheinvar in Revista Jard. Bot. Nac. Univ. Habana. 20: 167. 1999 syn. sec. Guzmán & al. 2003