Most cactus spines are fairly straight, but the fishhook barrel

Cacti of West and Southwest USA

Why do cacti have spines and not spikes? - Quora

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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?

How a Candy Craze Almost Wiped Out the Barrel Cactus - Gastro Obscura

fishhook barrel cactus (Cactus of Metro Phoenix (April 2021 EcoQuest Guide)) · iNaturalist

Cactus spines are modified leaves. What is their purpose? - Quora

When they were doing cactus rescues, they found a few yellow spines and yellow flowered plants. The first four pictures are of a mature plant in my

Ferocactus wislizeni Fishhook Barrel Cactus YELLOW SPINES/FLOWERS! 3.25 Pot

Why has this cactus plant got curly spines? Is there any clue as to what it is called? - Quora

Cactus spines are modified leaves. What is their purpose? - Quora

Barbed Barrel, January, February 2022

The Fish Hook Barrel Cactus is a True Sonoran Desert Beauty - Phoenix Home & Garden

Why do cacti have spines and not spikes? - Quora