Plant, any member of the plant kingdom—a realm of nature made up largely of living organisms that make their own food. Plant life in general is called vegetation. Flora refers to the plant life of a particular locality or geologic age. The scientific study of plants is called botany. Traditionally, biologists have placed bacteria, fungi, slime molds, and algae in the plant kingdom; today, most biologists place them in other kingdoms.
Though they may be stuck in one place, plants have proven to possess a surprising array of capabilities. But the ability to feel pain? Scientists are learning that the possibility isn't as crazy as it sounds.
Cinnamon, a tropical evergreen tree, related to the laurel. The bark is the source of a spice (also called cinnamon) and contains cinnamic aldehyde, an oil that is extracted and used as a flavoring, in medicine, and in perfume.