According to the Botanical Society of America, botany is the scientific study of plants, which includes algae, fungi, lichens, mosses, ferns and flowering plants. The people who work in botany, or botanists, can choose from a wide variety of careers.
Some botanists study how plants interact with their environments, while others conduct experiments to discover how plants grow under different circumstances. Professional botanists all have college degrees, but there is a vibrant community of amateur botanists. The most famous botanist was probably Charles Darwin. Known for introducing the theory of evolution, Darwin wrote several books that focus on plant development and plant fertilization.