no
Those are called artificial trees. Evergreen trees do not lose all their leaves at the same time, but DO lose leaves (needles).
Evergreen trees also loose their leaves one by one. Since all the leaves do not fall at the same time we do not notice this kind of leaf fall.
Deciduous trees lose their leaves in the Winter.
These are called deciduous trees. Trees that keep their leaves in winter are called coniferous. Most coniferous trees have needle leaves and cones. Deciduous leaves vary in shape and size but most trees that don't have a needle shaped leaf are deciduous trees.
Pine trees do not lose their leaves in Autumn. They are tall trees that have string like leaves and have cones on them. The cone are called 'Pine cones'. The look relatively the same all round the year.
Trees that do not loose their leaves are called Evergreens as opposed to Deciduous or those that do loose their leaves in the autumn/winter. Examples of Evergreens are Conifers- blue spruce, cedar- holly, oak.
Coniferous have cones and are evergreen. Deciduous lose their leaves in the autumn (or 'fall' as Americans call it). But your question asks what is the same about them. There are masses of things that are the same. For example, they both have branches and trunks and bark and sap and leaves
No.
Because of the parent trees
Evergreen trees, such as pine trees and spruces, do not lose their leaves.
Refoliation is a word that describes leaves growing back on trees.Specifically, foliation describes the first spurt of growth in a season. A tree may defoliate - or in other words, lose all of its leaves - in response to a severe infestation by pests. Oak trees (Quercus spp) respond to such an attack by growing another, second set of leaves within that same growing season.
A deciduous plant drops all of its leaves in the fall. A non-deciduous plant keeps most of its leaves throughout the year. Most non-deciduous temperate trees happen to be conifers but not all conifers are non-deciduous. Most tropical trees are non-deciduous.