Show ancient and unique the cactus has a clean cut pedigree which goes back farther than the lines of any an human family hot but it Is found growing wild only in the western sphere it la Is americas most striking expression of plant life developing defense armor when forced to live under arid conditions doctor jacolyn told the desert forum in like manner dr thomas macbride defines it as an ancient adaptation to an ancient desert possibly pre cretaceous and it takes possession of the world just as test fast as the world becomes become desert |