The study of plants is called "botany." Botany is a branch of biology that focuses on the structure, growth, reproduction, metabolism, development, diseases, and evolution of plants. This scientific discipline encompasses a wide range of areas, including plant physiology, taxonomy, ecology, and horticulture. Botanists play a crucial role in understanding plant diversity and their ecological roles, which is vital for conservation efforts and sustainable agriculture. As a cornerstone of environmental science, botany helps in addressing issues such as climate change, biodiversity loss, and food security.