Most cactus spines are fairly straight, but the fishhook barrel cactus has spines curved into a fishhook shape (I don't mean barbs). Are there any good ideas why that shape evolved?

fishhook barrel cactus (Cactus of Metro Phoenix (April 2021

Why do cacti have spines and not spikes? - Quora

Is a cactus a halophyte? - Quora

fishhook barrel cactus (Cactus of Metro Phoenix (April 2021

Close up spines fishhook cactus hi-res stock photography and

fishhook barrel cactus (Cactus of Metro Phoenix (April 2021

The Fish Hook Barrel Cactus is a True Sonoran Desert Beauty

Why do cacti have spines and not spikes? - Quora

Is a cactus a halophyte? - Quora

Close up spines fishhook cactus hi-res stock photography and