I've used white clover, a low growing variety called Alice, as ground cover. But I never thought to dehydrate it for the layers, as I have lots of red clover and what I had heard is the higher colored plants often have higher nutrient levels.
It's interesting to find out it has so many good properties. I'm going to add it to the list.
Now I can't wait for spring to get here even more so I can watch our front lawn turn into a clover field; small but still beautiful. And adding a few flowers and leaves to our salads? YES!!