Staghorn Cholla (Opuntia versicolor) Ocotillo (Fouquieria splendens) Opuntia sulphurea Clavellina Cholla (Cylindropuntia molesta) Front to back: Purple Prickly Pear (Opuntia macroc… Opuntia quimilo (Opuntia paraguayensis) Ladyfinger (Echinocereus pentalophus) Ladyfinger (Echinocereus pentalophus) Cactus garden progress 3/21/14 Ladyfinger (Echinocereus pentalophus) Hedgehog Cactus flower, afternoon Hedgehog Cactus flower, morning Hedgehog Cactus flower, morning Torch Cactus flower, morning Torch Cactus flower, afternoon Pomegranate flower Walsh Bisbee sidewalkin' Eucalyptus forest at Boyce Thompson Arboretum