Prairie turnip + Babassu palm

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.

Babassu palm (Babaçu, Cusi) is a palm native to the Amazon Rainforest region. The Babassu palm is the predominant species in the Maranhão Babaçu forests of Maranhão and Piauí states. This plant has commercial value because its seeds produce an edible oil called babassu oil, which is also used in cleaners and skin care products. The fruit is used to produce products such as medicines, beauty aids, and beverages. Traditional communities of the Maranhão region also produce a flour from the fruit and this is commercialized as a nutritional supplement. The leaves are also used to provide thatch for houses and can be woven into mats for constructing house walls. The stems are used for timbers. [Wikipedia]