Iguana is a genus of herbivorous lizards native to Central America. There are two species of iguana, Iguana delicatessima (Lesser Antillean Iguana), and Iguana iguana (Green Iguana). There are several similar genera that are commonly referred to as iguanas.

The common name is the 'Green Iguana' probably the most common/famous iguana

iguana iguana

13 in all species of iguanas 1.green iguana 2.fujji iguana 3.spiney tailled iguana 4.blue iguana 5.rock iguana 6.land iguana 7.marine iguana 8. desart iguana 9. rhino iguana 10. cayman iguana 11. chuckwella 12. water dragon 13 basilisk/ Jesus Christ lizard

Yes, there are some species of iguana, especially the desert iguana, of the Americasmmthat live in deserts.