Pinguicula lutea, commonly known as the yellow butterwort, is a species of warm-temperate carnivorous plant in the family Lentibulariaceae. It grows in savannas and sandy bog areas of the Southeastern United States. Pinguicula lutea’s flower is usually in a bright yellow or a straw-yellow color and very rare in white color. Like all the insectivorous plants of the genus Pinguicula, P. lutea traps small insects by using specialized glands on the surface of its basal rosette leaves.