Vegetation includes mesquite, prickly pear, barrel cactus, saguaro, cholla, emory oak and grasses. They build nests in holes made in saguaro cacti or mesquite trees. Some saguaros grow in rare formations called a cristate, or "crested" saguaro. He was talking about the Saguaro Cactus. Mesquites can serve as nurse trees to young cacti, such as the saguaro. Cresting results in undulating folds instead of the typical "arms" found on mature saguaro cactus. The saguaro blossom is the state wildflower of Arizona. East Tucson includes Saguaro National Park East. The tallest saguaro ever measured was an armless specimen found near Cave Creek, Arizona. Murphy attended Saguaro High School in Scottsdale, Arizona. The spines on a saguaro are extremely sharp and can grow up to per day. The saguaro provides voluminous amounts of pollen, nectar, and fruits. Bernhard attended Saguaro High School in Scottsdale, graduating in 1973. The saguaro creates callus tissue on the wound. The Saguaro features prominently in indigenous folklore and religions.