Sclerocactus

Fishhook cactus Fishhook cactus

Sclerocactus blainei

Blaine's fishhook cactus Blaine's fishhook cactus

Sclerocactus brevispinus

Pariette cactus Pariette cactus

Sclerocactus glaucus

Colorado hookless cactus Colorado hookless cactus

Sclerocactus glaucus

Colorado hookless cactus Colorado hookless cactus

Sclerocactus intertextus

White fish-hook cactus White fish-hook cactus

Sclerocactus johnsonii erectocentrus

Sclerocactus mariposensis

Golfball cactus Golfball cactus

Sclerocactus mesae-verdae

Mesa verde fishhook cactus Mesa verde fishhook cactus

Sclerocactus papyracanthus

Grama grass cactus Grama grass cactus

Sclerocactus polyancistrus

Mohave fishhook cactus Mohave fishhook cactus

Sclerocactus pubispinus

Great basin eagle-claw cactus Great basin eagle-claw cactus

Sclerocactus spinosior

Desert valley fish-hook cactus Desert valley fish-hook cactus

Sclerocactus unguispinus

Sclerocactus wetlandicus

Parriette hookless cactus Parriette hookless cactus