: plant life; especially: the plants characteristic of a region, period, or special environment <fossil flora>—compare fauna
: the microorganisms (as bacteria or fungi) living in or on the body <the beneficial flora of the intestine><potentially harmful skin flora>
All species of plants that are found in a particular region, period, or special environment. Six floral kingdoms are commonly distinguished: Boreal, Paleotropical, Neotropical, South African, Australian, and Antarctic. These kingdoms are further broken down into subkingdoms and regions, over which there is some dispute.