BLUE BONNET (Lupinus texensis), a North American plant of the pea or pulse family (Leguminosae), native to the plains of Texas. It grows about a foot high, has silky-haired leaves composed of five leaflets, and bears handsome clusters of purplish blue flowers, marked in the centre with white or yellow. As early as March the plant in bloom covers immense slopes in southern and western Texas with a blue carpet. The blue bonnet is one of the most popular wild flowers of the Southwest, and has been adopted as the State flower of Texas. In Scotland the name is given to the bluebottle (Centaurea Cyanus) and also to the blue scabious or devil's-bit (Scabiosa Succisa). See LUPINE. „