Reading about the history of spelt and emmer today, I discovered that Wikipedia has a category devoted to underutilized crops—it’s a term of art in agricultural biodiversity circles—highlighting 95 crops that don’t see a lot of agrarian action these days. There’s some interesting stuff in there, like Dioscorea opposita, the lube yam, and the only one suitable for eating raw. Or the tantalizingly brief entry on Kañiwa, an Andean quinoa relative whose “domestication is not complete.”
That’s it, really. Note to self: read more about underutilized crops.