There's all sorts of staples out there, like the timpsula, which is the prairie turnip which grows around these plains.
那里有各种各样的主食,比如 timpsula,它是生长在这些平原周围的草原萝卜。
英语百科
Psoralea esculenta
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. The prairie turnip was a staple food of the Plains Indians.