Children (11 direct children, 11 direct and indirect children):
Opuntia polyacantha var. arenaria
El paso pricklypear
Opuntia polyacantha var. erinacea
Grizzlybear pricklypear
Opuntia polyacantha var. hystricina
Grizzlybear pricklypear
Opuntia polyacantha var. nicholii
Navajo bridge pricklypear
Opuntia polyacantha var. polyacantha
Hairspine pricklypear
Opuntia polyacantha subsp. erinacea
Opuntia polyacantha var. platycarpa
Opuntia polyacantha var. albispina
Opuntia polyacantha var. juniperina
Opuntia polyacantha var. rufispina
Opuntia polyacantha var. schweriniana