Posted on 27.12.2013, 31.12.2013, and 07.01.2014
The
Sonoran Desert, one of the largest and hottest deserts in North America, covers large parts of the Southwestern United States and of Northwestern Mexico. It includes 60 mammal species, 350 bird species, 20 amphibian species, over 100 reptile species, 30 native fish species, over 1000 native bee species, and more than 2000 native plant species, among which are some endemic. Many plants not only survive, but thrive in the harsh conditions of the Sonoran Desert. It is the only place in the world where the famous
saguaro (
Carnegiea gigantea - in the first postcard) grows in the wild.
Cholla (
Cylindropuntia spp. - in the first postcard),
beavertail (
Opuntia basilaris - in the third postcard),
hedgehog (
Echinocereus spp.),
fishhook (
Ferocactus wislizeni),
prickly pear (
Opuntia spp.),
nightblooming cereus (
Peniocereus spp.), and
organ pipe (
Stenocereus thurberi - in the second postcard) are other taxa of cacti found here.
The
saguaro (
Carnegiea gigantea) is an arborescent cactus species which can grow to be over 20m tall. It is native to the Sonoran Desert, the Whipple Mountains and Imperial County areas of California. Native birds live inside holes in saguaros. Its blossom is the State Wildflower of Arizona.
Cholla (
Cylindropuntia spp).are native to northern Mexico and the Southwestern United States, and are known for their barbed spines that tenaciously attach to skin, fur, and clothing. The
organ pipe cactus (
Stenocereus thurberi) is found in rocky desert, and is susceptible to frost damage which kills the tips of the branches. It can reach a height of 7m.
Beavertail cactus (
Opuntia basilaris) is a medium-sized to small prickly pear cactus, growing to about 60 cm tall, found in southwest United States. The pink to rose colored flowers are most common; however, a rare variety of white and even yellow flowers also exist. It bloom from spring to early summer.