The butterwort (Pinguicula moranensis) belongs to Lentibulariaceae (the Bladderwort family). It is a perennial herb that is native to central and southwestern Mexico. It is an insectivorous plant that traps insects by emitting mucilage from its leaves, and its flowers resemble those of violets. It has long been known by the Japanese name of "Ashinaga-mushitori-sumire", and horticultural varieties have been produced in Europe. The plant is quite large, with a diameter of 10 to 15 cm. The flowers are bright red, peach, or white.