Deciduous

This is a woody perennial plant, tree or shrub, that loses all of its leaves during a year, with most leaves typically being shed from the plant in autumn. If there is a prolonged early summer drought the leaf fall can occur earlier than normal. The plant is left leafless during the colder winter when there is effectively no top-growth to a plant.
Examples of deciduous trees are Pedunculate (English) Oak (Quercus robur) or Beech (Fagus sylvatica), whilst deciduous shrubs can be species of Hydrangea or Spiraea.