Cereus Peruvianus Cristata Rock Cactus In A Five 5cm Pot
Pereskia leaves are claimed to only have the C3 mechanism with CAM restricted to stems. As of February 2012, it is not clear whether or not stem-based CAM evolved when only in the core cacti, or separately in the opuntias and cactoids CAM is recognized to have evolved convergently several times. Spines, which are modified leaves, are present on even those cacti with correct leaves, displaying the evolution of spines preceded the loss of leaves. A study found that most…