There are many spiny or thorny plants that life in the deserts of the world but, perhaps, the best known are the cacti which are natives to the Americas.
By definition, in the desert
Yes, plants live in all but the most exteme of deserts such as the Antarctic where few plants live and are rare in the Atacama Desert.
An ecosystem is a place where plants and animals ( maybe humans ) live and animals and plants live in the desert so … 
Some of the plants that live in the Simpson Desert: Canegrass Acacia Parrot Bush Spinifex Grass
Armadillo lizard, Desert tortoise, camel, desert rat are the only animals that live in the desert.cactus, Soaptree Yucca, Mojave Aster are the only plants to live in the desert
The Desert Spiny ranges in California, primarily in the Sonoran Desert region. Over west central and southern Arizona into southwestern New Mexico and south along the west coast of Mexico. Also, on the Colorado Plateau in northern Arizona and southeast Utah and parts of Colorado and New Mexico.
The Desert Spiny ranges in California, primarily in the Sonoran Desert region. Over west central and southern Arizona into southwestern New Mexico and south along the west coast of Mexico. Also, on the Colorado Plateau in northern Arizona and southeast Utah and parts of Colorado and New Mexico.
Xerophytic plants live in the desert scrub.
Yes; there are several species of iguanas found in Mexico. Some examples include the Mexican spiny-tailed iguana (Ctenosaura pectinata), the desert iguana (Dipsosaurus dorsalis) or the green iguana (Iguana iguana).
Aphids can be found in any warm or hot desert which has plants upon which they feed.
Some rattlesnakes live in deserts but a few species live in grasslands and forests.
Yes.