I thought when I finished The Intolerant Gourmet that I had covered all the grains. Well, it turns out that there is still one more, buckwheat groats. This is a tiny form of buckwheat that grows wild. I found some in a few days of experimenting I should have some solid data. the groats, like all buckwheat, are not a wheat but a non-gluten seed.
As they used to say on the radio in my childhood: "Stay tuned."