Phytosemiotics is a branch of biosemiotics that studies the sign processing capabilities present in plants.[1] Some functions that plants perform that utilize this simple semiosis includes cellular recognition, plant perception, intercellular communication,[1] and plant signal transduction.[2] Comparative to the sign processing present in animals and humans, phytosemiotics occurs at the cellular level, with communication between the cells of plants acting as a means of observing their surroundings and making rudimentary decisions.[1]