Normally, the CAM orchids have a thick, rough leaf and pseudobulb such as Aranda, Aranthera, Caliente, Cattleya, Coelogyne, Dendrobium, Laelie, Phalaenopsis, Thunia and Vanilla. They have an ability to keep the water in their leaf or stem. So, they can bear to hot weather than thin and smooth leaf suchContinue Reading