flameflower n 1: a plant of the genus Kniphofia having long grasslike leaves and tall scapes of red or yellow drooping flowers [syn: {kniphofia}, {tritoma}, {flame flower}, {flame-flower}] 2: plant with fleshy roots and erect stems with narrow succulent leaves and one reddish-orange flower in each upper leaf axil; southwestern United States; Indians once cooked the fleshy roots [syn: {flame flower}, {flame-flower}, {Talinum aurantiacum}]