Prairie turnip + Persian lime

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 esculenta. English names for the plant include tipsin, teepsenee, breadroot, breadroot scurf pea, and pomme blanche. The prairie turnip was a staple food of the Plains Indians. A closely related species, Psoralea hypogaea, the little breadroot, is also edible, although the plant and root are smaller. Another species, Psoralea argophylla, was probably harvested for food only in times of famine.

Persian lime (Citrus ×latifolia) or Shiraz Limoo also known as Tahiti lime or Bearss lime (named after John T. Bearss, who developed this seedless variety about 1895 in his nursery at Porterville, California), is a citrus fruit related to the standard lime. It has a nearly thornless tree. The Persian lime is of hybrid origin, most likely from a cross between key lime (Citrus aurantiifolia) and either lemon (Citrus ×limon) or citron (Citrus medica).