That said, Marder admits that we can’t know if plants are self-conscious, because we define both the self and consciousness based on our human selves and limitations. “Before dismissing the existence of this higher-level faculty in them outright, we should consider what a plant self might be,” he says.
Marder points out that plant cuttings can survive and grow independently. That suggests that if plants do have a self, it is likely dispersed and unconfined, unlike the human sense of self. It’s notable, too, that many scientists and mystics argue that the human feeling of individuality—of being a self within a particular body—is a necessary illusion.
He further argues that because plants communicate with one another, defend their health, and make decisions, among other things, they may well have some sense of self, too.