barrel cactus
barrel cactus are named because of the shape it has like a barrel. barrel cacti have a great adaptation to its climate. these is one of the most abundant cacti there is on deserts. the spines were created by them because they use it to protect them from animals that eat them because if they do they get stong. these is largest cacti found in the southwest region of america. cacti are one of the good example that are plants that can adapt to really big changes and climates. barrelk cactus can adapt to almost any kind of climate as long as they have a good care.
resources
barrel cactus: www.buzzle.com
resources
barrel cactus: www.buzzle.com