Any seeds from pine cones. Wild grass seeds (any grass. Our grains like wheat and buckwheat are also grasses) can be ground into flour, although most of them are tiny. Amaranth and dock both send up seed stalks with thousands of seeds, and the whole seed can be ground into flour, although some winnow them to get rid of the chaff. Amaranth can also be popped like pop corn.
They are all good.
