ferocactus genus --- cactus family
California barrel cactus (Ferocactus cylindraceus) -- in March -- Organ Pipe Cactus National Monument, AZ yellow & orange AZ-SRN
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glaucous barrel cactus (Ferocactus glauescens) -- in April -- Chihuahuan Desert Nature Center, TX yellow & orange TX-W
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fishhook barrel cactus (Ferocactus wislizenii) -- in July -- Bosque del Apache National Wildlife Refuge, NM yellow & orange NM-S
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fishhook barrel cactus (Ferocactus wislizenii) -- in April -- Chihuahuan Desert Nature Center, TX yellow & orange TX-W
