Related how?

Biota (Life)
Eukaryote (Eukarya)
Diaphoretickes (Plants+hc+sar megagroup)
Archaeplastida
Plant (Green plants)
Viridiplantae (Chlorobiota)
Streptophyta (Streptophytina)
Embryophyte (Land plants)
Tracheophyta (Higher plants)
Euphyllophytina (Euphyllophyta)
Radiatopses
Lignophyta
Seed plants (Phanerogams)
Acrogymnospermae
Cycadophytanae
Magnoliophyta (Angiosperms)
Magnoliopsida
Caryophyllidae
Caryophyllanae
Caryophyllales
Cactineae
Cactaceae (Cactuses)
Cactoideae
Cacteae
Ferocactus (Barrel cactus)

Ferocactus gracilis (150203)

Children (5 direct children, 5 direct and indirect children):

Ferocactus gracilis coloratus

Ferocactus gracilis gatesii

Ferocactus gracilis gracilis

Ferocactus gracilis var. coloratus

Ferocactus gracilis subsp. tortulispinus