 Deciduous forest after leaf fall |
 Like many deciduous plants, '' Forsythia'' flowers during the leafless season |
'Deciduous' means "temporary" or "tending to fall off" (deriving from the
Latin word ''decidere'', to fall off) and is typically used in reference to trees or shrubs that lose their leaves seasonally.
Deciduous trees include
Maple,
Oak (but not all species),
Elm,
Aspen, and
Birch, among others, as well as a number of
coniferous genera, such as
Larch and
Metasequoia. Periods of leaf fall often coincide with seasons: winter in the case of cool-climate plants or the dry-season in the case of tropical plants.
[1]
Botany
In
botany, 'deciduous
plants', principally
trees and
shrubs, are those that lose all of their
leaves for part of the year. This process is called
abscission. In some cases, the leaf loss coincides with
winter in
temperate or
polar climates, while others lose their leaves during the
dry season in climates with seasonal variation in
rainfall. The converse of deciduous is
evergreen; plants that are intermediate may be called
semi-deciduous.
Many deciduous plants
flower during the period when they are leafless, as this increases the effectiveness of
pollination. The absence of
leaves improves wind transmission of pollen in the case of wind-pollinated plants, and increases the visibility of the flowers to
insects in insect-pollinated plants. This strategy is not without risks, as the flowers can be damaged by frost, or in dry season areas, result in water stress on the plant. Nevertheless, by losing leaves in the cold winter days, plants can reduce water loss since most of the water would appear as ice, and there is much less branch and trunk breakage from glaze ice storms when leafless (Lemon 1961).
Anatomy
In
anatomy, '
deciduous teeth', also called
milk teeth, are those that fall out during the course of normal development. Other body parts that are shed, such as
antlers, are also described as deciduous.
Regions
The deciduous forest can be found in sections of:
North America,
South America,
Europe,
Asia,
Australia, and
Africa (
Madagascar).
See also
★
Evergreen
★
Semi-evergreen
★
Semi-deciduous
References
1. Cundall, Peter. ''Flora: The Gardener’s Bible: Over 20,000 Plants''. Ultimo, NSW, Australia: ABC Publishing, 2005. ISBN 073331094X.
★ Lemon, P. C. (1961). Forest ecology of ice storms. ''Bulletin of the Torrey Botanical Club'' 88: 21.