File:Fish hook Cactus.jpg - Wikimedia Commons

Cactus Species of the American Southwest (Complete Guide)

File:Mammillaria tetrancistra (fishhook cactus).jpg - Wikipedia

File:Ferocactus wislizeni (Fishhook Barrel Cactus) 1.jpg - Wikipedia

Barrel or fish hook cactus, found in the Sonora desert Stock Photo - Alamy

Cannundrums: Fishhook Cactus

File:With developed budding of Fish hook Cactus.jpg - Wikimedia Commons

The Cactus - Ecology Prime

Close up spines fishhook cactus hi-res stock photography and images - Alamy

Sclerocactus papyracanthus

Tobusch fishhook cactus: Federal & State Listed Plants of Texas

Unusual and Exotic Cacti Plants from Seeds

File:Sclerocactus wrightiae.jpg - Wikipedia

Ferocactus wislizeni (Fishhook Barrel Cactus)