A deciduous tree is a type of tree that loses its leaves at a certain time of the year, usually in autumn or in the dry season. This process is called abscission and it helps the tree to conserve water and energy during unfavorable conditions. Deciduous trees are also known as broadleaf trees or hardwood trees, and they can be found in various regions of the world, such as temperate, tropical and subtropical climates. Some examples of deciduous trees are oak, maple, birch, ash, willow and beech. Deciduous trees often produce flowers and fruits before or after shedding their leaves, which can attract pollinators and disperse seeds. Deciduous trees have different triggers for leaf loss, such as day length, temperature and rainfall.