The collection of species in a specific geographical area or unit is known as phytocoenosis or plant community. This patch is comparatively different from the vegetation in other areas of neighboring locations. There are factors like topography, climate, soil type and human disturbance which contribute to the growth and physiology of those plants. There are various kinds of soil compositions that have a role in the phytocoenosis. For observation a plant community will have many layers to notice. The upper tree layer includes canopy or overstory along with an understory that has many subdivisions. The shrubs, herbs and there is one moss layer as well. The forests can be very complex and hundreds of plants and trees can be part of this phytocoenosis. There are vegetative areas having a lower layer with well defined growth of trees. A particular species may dominate the community. There are plants with influence over the environment and the composition of ecology. The perfect structure of a community is defined by the distribution of factors such as soil, topography, climate, geography, time, human beings, fire, water availability and other living creatures. A plant community can have more interdigitate boundaries or obvious structures. There are areas where the communities are known to overlap with each other, transit and form diverse interactions known as ecotones. The plant community can vary as time passes. There are natural phenomenon and human activities that can alter the vegetation in the area. These changes in phytocoenosis are known as succession. It takes more than hundreds of years for natural form of ecological succession to occur. When communities are known to evolve, going from one stage to another a state of equilibrium is maintained. The plant species have diverse physiognomy depending on their location and assemblage in a particular area. The studies on earth’s plant distribution will help in maintaining forests and ecosystems in their natural state.