Giant cacti and spiny scrub abound.
The most common plants of the Mexican plateau are the agaves, yuccas and cacti, each of which is represented by a number of species.
In ascending from the coast-valleys there is first an arid range, where the great-branched cacti rear themselves up among the rocks.
Palms are common, the chestnut abounds in many places, the cacti are almost as numerous as on the open plateau.
Proceeding southward cacti become common, first a dwarfed species, and then a larger columnar form (Cereus quisco).