Here is a web site I love. It's from Susun Weed.
The Poaceae family - Grasses - the beating heart of life on earth
by Susun Weed
The earth offers us so many green blessings: an abundant, overwhelming, brimming basket of beauty, food, and medicine. With so many choices, it's hard to know where to start. Let's learn herbal medicine from the ground up, by focusing on the families of plants. In previous issues we visited with the mallow family, the knotweed family, the rose family, the aster family (and the genus artemisia), the cabbage family, and the lily family. Altogether, that's more than 30,000 plants we've learned how to identify and use. What's next? The grasses! Few people think of grass as a flowering plant; but it is. Our ancestors had great respect for the grasses. They, in their multitude, are the beating heart of life on earth, the prime mover of agriculture, and the tuning fork of universal nourishment. The grass family -- the Poaceae -- is found in every habitat all over the world, and includes more than 10,000 plants, all of which bear edible seeds.
For more of Susun Weed's article, go HERE.