The Cacti of California

areas areole Arizona Baja California barbed Barrel Cactus Bergerocactus Borrego branches bushy Cabrillo National Monument Cactaceae cacti Cactus Opuntia California cacti carpa central spines Cholla Opuntia coastal color Colorado Desert Coryphantha Coryphantha deserti cylindrical desert slopes diameter distinctive east of Jacumba Echinocactus polycephalus echinocarpa Echinocereus engelmannii elongate erinacea feet tall Ferocactus acanthodes Ferocactus viridescens Fishhook Cactus fleshy flora fruits genera glochids grows hybrid inches long Ivanpah Joshua Tree Joshua Tree National megacantha Mexico Mission Cactus Mojave Desert Mono County Moun occurs Opuntia acanthocarpa Opuntia basilaris Opuntia bigelovii Opuntia chlorotica Opuntia covillei Opuntia ficus-indica Opuntia littoralis Opuntia oricola Opuntia prolifera Opuntia vaseyi pads perianth segments Phellosperma piercei plant Prickly Pear Opuntia prickly pears purplish radial spines range San Bernardino Mountains San Diego County Sclerocactus seeds seen Sentenac Canyon sheath species specimens spination spineless spiny stems succulent tain Tree National Monument treelike tubercles usually variable