Found growing from a cavity in a limestone boulder near Barton Creek. No fruit or flowers. Solitary plant, no others in in surrounding area. First of this species I've seen in Travis County; USDA rangemap shows its range as spotty at best, with no two counties touching. However, the same map shows its East Texas nativity to be Newton County only, but I have seen it in both Nacogdoches and Shelby county, so I wonder how accurate the USDA maps are. Has anyone else seen this plant in Central Texas?