Alicia here. The Boojum tree is pictured in the right. This tree only grows naturally in the Sonoran desert in central Baja on the the gulf of California. It is a bizarre tree named from Lewis Carroll's The Hunting of the Snark. The legend is that if you get too close to a Boojum you "will softly and suddenly vanish away." This Boojum is at the Phoenix Botanical Gardens, which is free the second Tuesday of the month.