Ariocarpus retusus

Ariocarpus retusus LRM250

Rio Verde is the known southerly limit of the distribution range of A. retusus.  The plants correspond to what has been described as A. retusus ssp. scapharostroides.  The number of plants in this colony is quite small, possibly because it is close to a main road, but the population has been stable in the time we have been observing them.