Psoralea esculenta, prairie turnip is an herbaceous perennial plant native to prairies and dry woodlands of central North America, which bears a starchy tuberous root edible as a root vegetable. The plant is also known as Pediomelum esculentum. English names for the plant include tipsin, teepsenee, breadroot, breadroot scurf pea, large Indian breadroot and pomme blanche.