| Photo © Mark Faint |
Subspecies frailensis differs from subspecies macrochele by the lower number of stigma lobes, 3 - 6, these are white to yellowish-white, only 2-3.5 mm long and straight, as well as only weakly papillose; further with only a flowering period at the beginning of the year.
Locality: West to south-west of Matehuala, San Luis Potosi, México.
The 2 locality forms T. macrochele "Guerrero" and macrochele "Los Laureles" belong here.
Turbinicarpus macrochele ssp. frailensis is part of the macrochele aggregate of taxa, together with the following: