Capsicum annuum is the most extensively cultivated pepper species in the world and subsumes most of the varieties known to the home gardener. It includes, for example, the Ancho, Bell, Jalapeno, Paprika, Pimiento, Serrano, New Mexican, and Thai peppers.
Capsicum chinensis includes the fiery Habanero. The small pods are a flattened bell shape with a fruity aroma, and can be used fresh in salsas.