Lemon lime philodendron Plantsnap Identify Plants, Trees, Mushrooms With An App CAM (Crassulacean Acid Metabolism) Plant: CAM plants use this pathway to fix carbon dioxide, which helps them reduce water loss and photorespiration. They are often found in arid and dry climates. Examples Jatropha Garden Style San Antonio Prickly Lettuce (Lactuca serriola) vs. Wild Lettuce (Lactuca virosa) plant id. There has been some confusion, which is not fatal, as both species contain the pain relieving and sedative milky latex known