These 'lost crops' could have rivaled corn

But, what happened to them? There are no written or oral histories to describe them—and scientists believe the domesticated forms of the lost crops are extinct.

In the Journal of Ethnobiology, Natalie Mueller, assistant professor of archaeology at Washington University in St. Louis, describes how she grew and calculated yield estimates for two annual plants that indigenous people cultivated in eastern North America for thousands of years—and then abandoned.

https://www.futurity.org/lost-crops-agriculture-indigenous-people-2242872-2/