ABSTRACT
The effects of environmental factors on phytochemical compositions of medicinal plants highlight some disparities in the manner in which they respond to different environmental conditions. In this chapter, the effects of different environmental factors such as geographical locations of different altitudes, seasonal variation, and different exposure levels to pollution on the phytochemical composition of selected medicinal plants are discussed. The accumulation of phytochemicals in medicinal plants as a response to the influences of different environmental factors appear to differ among different plants. Thus, the accumulation of phytochemicals in medicinal plants as a response to environmental factors follows a non-general trend.276
