Botany, plant science or plant biology is a branch of biology that involves the scientific study of plant life. Generally, botany also included the study of fungi, algae and viruses. Botany covers a wide range of scientific disciplines including structure, growth, reproduction,metabolism, development, diseases, chemical properties, and evolutionary relationships among taxonomic groups. Botany began with early human efforts to identify edible, medicinal and poisonous plants, making it one of the oldest branches of science. Today botanists study over 550,000 species of living organisms.
1. The science or study of plants.
2. A book or scholarly work on this subject.
3. The plant life of a particular area: the botany of the Ohio River valley.
4. The characteristic features and biology of a particular kind of plant or plant group.