Butterworts are Carnivorous Plants in the genus Pinguicula. They grow on every continent except Australia and Antarctica. There are two basic types of Butterworts: Temperate Butterworts that endure cold winters and Tropical Butterworts that endure dry winters.
Temperate Butterworts survive winter by forming a set of small leaves that shield the growth point from the cold. There the plant rests as a little ball in the dirt, barely noticeable, until warmth returns.
Tropical Butterworts survive the dry season by producing a set of small non-carnivorous leaves that are very resistant to drought. There are however some that remain carnivorous year round, such as Pinguicula gigantea.