Hedgehog Cactus flower, morning Hedgehog Cactus flower, morning Hedgehog Cactus flower, afternoon Ladyfinger (Echinocereus pentalophus) Cactus garden progress 3/17/14 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 Torch Cactus flower, afternoon Pomegranate flower Walsh Bisbee sidewalkin' Eucalyptus forest at Boyce Thompson Arboretum Eucalyptus forest at Boyce Thompson Arboretum