Plant use

Plant use is a familiar word pair that emphasizes how the great wealth of properties and characters of different botanical species has allowed humans to develop different aspects of their culture. On one hand, plants communicate chemically with each other; on the other hand, their wealth of chemical communication tools has attracted humans, who are interested in colors and smells, taste and food, fuel, wellness, and health. The traces of plants buried in archeological sites—the subject of archeobotany—allow us to reconstruct the steps of the relationship between humans and plants. Surprisingly, the study of botanical remains from the past shows complex uses since the very early stages of human cultures, dating back even before the beginning of the Holocene. The relationship with the environment was structured in forms of increased control, at least from the invention of agriculture (as something that had never existed before) onward, undertaking complex forms of exploitation in accordance with the different cultures in the different regions of the world. In more recent times, people and plants have also progressively developed a history of greater management and interdependence, including the development of agricultural landscapes, selection of domesticated species, and creation of gardens. The relationship with plants changes as society changes, leading to the loss of much knowledge in present times because of less connection and contact with nature. Knowledge and conservation of traditions dealing with plants are studied with ethnobotany, which explores plant use in the present day. Ecology for ecosystem services is the newest perspective on plant use, where perhaps trees return to play a key role in human existence without being cut down, and the green color of chlorophyll returns as a reassuring signal to the human species.