The term PLANTS OF A PARTICULAR REGION can be summarized by the word FLORA, which is a five-letter word. FLORA is a term used to refer to all of the plant species that are native to a particular region or area. It is often used to describe the plants that are found in a specific habitat, such as a forest, desert, or grassland. FLORA can also be used to refer to the plants that are cultivated and grown in a particular region.