A tree that drops it's leaves in autumn is a deciduous tree.
A deciduous tree drops its leaves in the Autumn the others are Evergreens.
When the average temperature drops to a certain point and the average amount of sunshine drops to a certain point a hormone is released that starts the process of shutting down for dormancy. The tree drops its leaves to stop evaporation.
An evergreen tree's leaves never die and a deciduous tree's leaves die during the winter and fall. A deciduous tree drops its leaves in Autumn.
The tree is virtually hibernating and drops its leaves so that it may avoid freezing of free water in the leaves during winter season.
If it does not shed it's leaves in Winter it is not an Elm.
Yes, the weeping willow drops its leaves in Autumn.
A deciduous tree is a tree that drops it's leaves in the Autumn. A conifer or coniferous tree is a tree that bears cones. Some conifers are deciduous.
When a tree drops it's leaves in autumn the seal that causes the leaf to drop is the leaf scar. This seals and prevents loss of sap.
Sorry, that is not a deciduous shrub. Because it drops it's leaves in winter, the maple tree is deciduous.
Apple trees lose their leaves in the fall, so they would be classed as deciduous.
When the average day time temperature drops to a certain average level and average amount of daylight decreases to a certain level and when the available moisture drops to a critical level, Hormones are released which tell the leaves to stop what they are doing. The chlorophyll leaves the leaf, taking the green color with it. The nodal connection to the tree releases and the leaf comes tumbling down. This whole process, called abscission and prevents the tree from losing anymore water through it leaves. At that time of year, the water supply is usually less and tree wants to conserve what it has.