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Cylindropuntia rosea
Cactus fully covered with hard and sharp thorns. Thorns are white with a pink color at the base. You can hardly see any green part of the cactus. Thorns are a defense against plant eaters as well as a protector from the sun rays and heat. Very drought resistent (look at the last pick).
Semi desert
Hudson pear has particularly vicious spines which are capable of penetrating footwear and even vehicle tyres.