Children (24 direct children, 24 direct and indirect children):
Frailea pumila subsp. albiareolata
Frailea pumila subsp. alegretensis
Frailea pumila subsp. aquatica
Frailea pumila subsp. aurantiaca
Frailea pumila subsp. boosiana
Frailea pumila subsp. chrysacantha
Frailea pumila subsp. colombiana
Frailea pumila subsp. concordiaensis
Frailea pumila subsp. corrienta
Frailea pumila var. curvispina
Frailea pumila subsp. deminuta
Frailea pumila subsp. editha
Frailea pumila subsp. hlineckyana
Frailea pumila subsp. iguaraica
Frailea pumila subsp. jajoiana
Frailea pumila subsp. meseta
Frailea pumila subsp. multiceps
Frailea pumila subsp. necopina
Frailea pumila subsp. neoeditha
Frailea pumila subsp. pubispina
Frailea pumila subsp. tenuissima
Frailea pumila subsp. uruguayana
Frailea pumila subsp. maior
Frailea pumila var. maior