A plant having foliage that is shed annually at the end of the growing season WordNet 3.0 & Open English WordNet

Any tree losing its leaves in autumn and growing new ones in the spring. OmegaWiki

The temperate forests comprised of trees that seasonally shed their leaves, located in the east of the USA, in Western Europe from the Alps to Scandinavia, and in the eastern Asia. The trees of deciduous forests usually produce nuts and winged seeds. OmegaWiki