Trees can be divided into two groups. Broad-leaved trees, which may also be deciduous, meaning that they drop their leaves in winter, are flowering plants. Sometimes their flowers are very small and difficult to spot. Conifers, most of which are evergreen, retaining their leaves all year round, are cone-bearers. They have small male cones and larger female cones instead of flowers.
If trees didn’t have flowers there would be no seeds, and if there were no seeds, new trees wouldn’t come up each year. And if new trees didn’t come up each year, there wouldn’t be forests.
Every single tree in the world has flowers, though sometimes they are too small to be seen or are buried so deep in the leaves that nobody can find them. Certain trees have flowers that come before their leaves, so people don’t notice the tiny blooms, which usually are not very colorful.
Certain trees have flowers that have no petals; others are green and appear to be buds of coming leaves unless you look very closely. There are even trees whose flowers are too small to see without a microscope.
Evergreen: Evergreen any plant that retains its leaves through the year and into the following growing season. Many tropical species of broad-leaved flowering plants are evergreen, but in cold-temperate and Arctic areas the evergreens commonly are cone-bearing shrubs or trees (conifers), such as pines and firs. The leaves of evergreens usually are thicker and more leathery than those of deciduous trees (those that shed their leaves in autumn or in the tropical dry season) and often are needlelike or scalelike in cone-bearing trees. A leaf may remain on an evergreen tree for two years or longer and may fall during any season. An evergreen forest may be needle-leaved, as the coniferous forests of the Northern Hemisphere, or broad-leaved, as the temperate rain forests of the Southern Hemisphere and the broad sclerophyll forests (with thickened, hardened foliage resistant to water loss) of coastal areas of the Northern Hemisphere. Most tropical rain forests contain broad-leaved evergreens.
Picture Credit : Google