Cylindropuntia genus --- cactus family
Wiggins' cholla (Cylindropuntia echinocarpa) -- in March -- U.S. 95 in southern Nevada red & pink
Wiggins' cholla (Cylindropuntia echinocarpa) -- in March -- Cabeza Prieta National Wildlife Refuge, southern Arizona
jumping cholla (Cylindropuntia fulgida) -- in March -- Sonoran Desert National Monument, AZ green & brown
jumping cholla (Cylindropuntia fulgida) -- in March -- Organ Pipe Cactus National Monument, AZ
tree cholla (Cylindropuntia imbricata) -- in March -- near Walsenberg, Colorado grasslands red & pink
tree cholla (Cylindropuntia imbricata) -- in April -- Mills Canyon, Kiowa National Grassland, NM red & pink
walkingstick cactus (Cylindropuntia spinosior) -- in April -- Villanueva State Park, NM red & pink
whipple cactus (Cylindropuntia whipplei) -- in March -- Four Corners, northern New Mexico green & brown