Opuntia undulata Opuntia undulata Griffiths in Rep. (Annual) Missouri Bot. Gard. 22: 32–33. 1912 sec. Hernández & al. 201411. Hernández, H.M., Gómez-Hinostrosa, C., Bárcenas, R.T., Puente, R. & Reyes-Agüero, J.A. 2014: A checklist of the subfamily Opuntioideae (Cactaceae) from North and Central America. – Succulent Plant Research 8: 185-200Content
