Opuntia miquihuanensis (Cactaceae: Opuntioideae), a new species endemic to the locality Peña-Aserradero, part of the Sierra Madre Oriental, Tamaulipas, Mexico, is formally described and illustrated. Phylogenetic analyses used maximum parsimony, maximum likelihood and Bayesian inference, based on sequences of trnL-trnF, psbJ-petA, matK, ycf1, ppc and ITS. The micromorphology of spines, epidermis, stoma, and pollen was characterized with scanning electron microscopy. Opuntia miquihuanensis is recovered as a supported species within Opuntia s.str.
Martínez-González et al. (Wed,) studied this question.