Native Central America, Mexico, through Arzona, New Mexico, and Western Texas and north into southwestern, central, and southeastern Montana. Their is about 77 species.
It is a small to middle sized, globose or columnar cacti that have grooved tubercles instead of ribs. Common colour flower is yellow. Conditions for growing is full sun but in summer filtered light is the best, cactus compost is the best for potting them in. Water sparingly and allow to dry out completely before watering again and needs good drainage. Frost tolerance.