cholla cactus garden in joshua tree national park

about ajo america arborescent arid arizona barrell bear cactus carnegiea chain cholla desert drive dry engelmannii engelmanns ferocactus flora fruit fulgida garden gigantean hardy hot joshua learn mammillaria mountain national nature north opunita opuntia organ park pear pincushion pipe plant plants prickly rock saguaro sonoran spine stenocereus succulents teddy thurberi travel tree treelike usa vegetation weather wild wilderness wislizenii yucca acti