Fishhook barrel cactus (Ferocactus wislizeni) ©Glen L. Goodwin
Hedgehog cactus (Echinocereus fasciculatus) ©Max Licher
Prickly-pear (Opuntia macrorhiza) © Max Licher
Scarlet hedgehog cactus (Echinocereus coccineus) © Frankie Coburn
Lau’s hedgehog cactus (Echinocereus lauii, Cactaceae). This species is only known from the El Trigo area east of Yécora in the Sierra Madre Occidental in eastern Sonora. It has Amenazada protection status under the 2010 Mexican endangered species law. © Sky Island Alliance. Photo by Thomas R. Van Devender.
Rainbow cactus (Echinocereus rigidissimus, Cactaceae). Close-up of flower. © Sky Island Alliance. Photo by Thomas R. Van Devender.
Cardón Cactus, cardón or sahueso in Spanish (Pachycereus pringlei, Cactaceae). © Ana Lilia Reina
Fishhook pincushion cactus (Mammillaria grahamii) ©Liz Makings
Huachuca agave (Agave parryi) ©Guillermo Molina
Nichol’s Turk’s Head cactus (Echinocactus horizonthalonius var. nicholii, Cactaceae. Young plant next to peso. Federally listed Endangered subspecies known from southern Arizona and two areas in Sonora, Mexico. © Sky Island Alliance. Photo by Thomas R. Van Devender.
Rainbow cactus (Echinocereus rigidissimus) © Stephen L. Minter
Huachuca agave (Agave parryi, Agavaceae). © Stephen L. Minter
Nichol’s Turk’s Head cactus (Echinocactus horizonthalonius var. nicholii, Cactaceae. Plant and flower. Federally listed Endangered subspecies known from southern Arizona and two areas in Sonora, Mexico. © Sky Island Alliance. Photo by Thomas R. Van Devender.
San Francisco River leatherpetal (Graptopetalum rusbyi) © Patrick Alexander
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