EditorialCut down Saguaro cactuses in Organ Pipe Cactus Monument, where a wall is being built along the Arizona-Mexico border, near Lukeville, Ariz., on Feb 19, 2020. (Adriana Zehbrauskas/The New York Times)
EditorialSaguaro cactus, Carnegiea gigantea (Cereus giganteus). Lithograph from Louis van Houtte and Charles Lemaire's Flowers of the Gardens and Hothouses of Europe, Flore des Serres et des Jardins de l'Europe, Ghent, Belgium, 1862-65.