* Flora refers to the plant life of a particular region or time period. Think of all the flowers, trees, grasses, and other plants found in a forest, a garden, or a specific country.
* Fauna refers to the animal life of a particular region or time period. This could include everything from insects and birds to mammals and reptiles.
So, when you talk about flora and fauna, you're talking about the whole living world of plants and animals in a particular place.