The term PLANTS OF A 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 includes both wild and cultivated plants, and can also refer to the plant life of a specific time period. FLORA is an important part of any ecosystem, as it provides food and shelter for animals, and helps to maintain the balance of the environment.