Deciduous (broadleaf) trees drop their leaves in the Autumn (fall in the USA), spending winter with bare branches. Evergreen trees (cedars, pines and firs, etc) keep their leaves throughout the year, shedding needles and regrowing as needed. The Larch drops their needles in Autumn.
Deciduous trees shed their leaves in the fall.
Some trees (Madrone, Eucalyptus) shed leaves as a response to hot weather (such as in August).
All deciduous trees shed annually, but some shed later in the year than others, such as the Blood-oak, which sheds it leaves in spring, instead of fall. Trees that do not shed their leaves annually are not deciduous.
All pine trees have flowers but they are insignificant.
Trees that shed their leaves are called deciduous trees.
I presume you mean leaves. All deciduous trees lose their leaves in winter.
conifers
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Deciduous.
Evergreen trees do not shed their leaves in the Autumn.
deciduous trees shed their leaves in autumn. evergreen trees never shed their leaves.
A tree which sheds it's leaves once a year is called deciduous.