Botany In botany and horticulture, deciduous plants, including trees, shrubs and herbaceous perennials, are those that lose all of their leaves for part of the year. This process is called abscission. In some cases leaf loss coincides with winter—namely in temperate or polar climates. In other parts of the world, including tropical, subtropical, and arid regions, plants lose their leaves during the dry season or other seasons, depending on variations in rainfall.
botany in botany and horticulture deciduous plants including trees shrubs and herbaceous perennials are those that lose all of their leaves for part of the year this process is called abscission in some cases leaf loss coincides with winter—namely in temperate or polar climates in other parts of the world including tropical subtropical and arid regions plants lose their leaves during the dry season or other seasons depending on variations in rainfall