Tubers

The doctor suggested a Kitavan islander's diet of tubers, fresh fruit, coconut, and fish.

The flatbread, likely unleavened and somewhat resembling pita bread, was fashioned from wild cereals such as barley, einkorn or oats, as well as tubers from an aquatic papyrus relative, that had been ground into flour.

Potatoes are tubers.

The goats dug for roots and tubers when grass was scarce.