Children (7 direct children, 7 direct and indirect children):
Echinocereus polyacanthus subsp. acifer
Echinocereus polyacanthus subsp. huitcholensis
Echinocereus polyacanthus subsp. mombergerianus
Echinocereus polyacanthus subsp. pacificus
Echinocereus polyacanthus var. densus
Echinocereus polyacanthus var. huitcholensis
Echinocereus polyacanthus var. pacificus