mamillaria cactus with red prickles hooks in the crack of rocks. organ pipe national park

ajo america arborescent arid arizona barrell bear cactus chain cholla crack desert drive dry engelmanns ferocactus flora fruit hardy hooks hot landscape learn mamillaria mountain national nature north organ park pear pipe plant prickles prickly red rock rocks saguaro sonoran spine succulents teddy travel tree usa vegetation weather wild wilderness wislizenii nacti