Lupine, a group of annual and perennial plants that grow chiefly on the Great Plains of North America. The leaves are made up of a number of fingerlike leaflets growing from the tips of the leafstalks. The plants bear attractive white, blue, yellow, or purple flowers. Several species are grown in gardens, and in Europe some are cultivated for forage. One species, the bluebonnet, is the state flower of Texas.
Lupines belong to the genus Lupinus of the pea family, Leguminosae.Lupine leaves are made up of a number of fingerlike leaflets.