Children (8 direct children, 12 direct and indirect children):
Strombocactus disciformis
(tree size 3)
Cactus
Strombocactus subg. turbinicarpus
Strombocactus pseudomacrochele
(tree size 1)
Strombocactus corregidorae
Strombocactus schmiedickeanus
Strombocactus turbiniformis
Strombocactus denegrii
Strombocactus klinkerianus