He deciduous characteristic has developed repeatedly among woody plants. Trees include maple, many oaks and nothofagus, elm, aspen,and birch, among others, as well as a number of coniferous genera, such as larch and Metasequoia. Deciduous shrubs include honeysuckle, viburnum, and many others. Unlike evergreens that retain their leaves, deciduous plants shed them each year before entering a dormant period in winter, then grow a new canopy of leaves in spring.
A widespread family of trees and shrubs. Generally plants of river beds and lakeshores, they are quite adaptable to a wide variety of soil types. They are able to fix atmospheric nitrogen making them valuable for reclamation projects. Generally low maintenance.
Hackberry (Celtis occidentalis)
Hackberries are tough trees able to grow in many soils and will tolerate both drought and some flooding. They are distantly related to the elms and, while the leaves are different, the shape is similar. Hackberry is not susceptible to Dutch Elm Disease.
The genus Aesculus comprises 20–25 species of deciduous trees and shrubs native to the temperate northern hemisphere, with 7–10 species native to North America and 13–15 species native in Eurasia; there are also several natural hybrids. They are distantly related to Maples. The North American species are known as Buckeyes and the Eurasian species as Horse-chestnuts.
Elms are deciduous and semi-deciduous trees found throughout the Northern Hemisphere from Siberia to Indonesia, Mexico to Japan. All species are tolerant of a wide range of soils and pH levels but require good drainage. The American Elm was the boulevard tree of choice before the arrival of Dutch Elm Disease decimated the trees in many areas. Work is being done on finding more DED resistant varieties.