Buckwheat
Despite its name, buckwheat is unrelated to wheat and is not a grass at all. The triangular seeds can be milled into flour with a nutty flavor. It is gluten-free and rich in protein and fibre. Buckwheat was domesticated in Central Asia and is a hardy plant which can tolerate poor soil and cold climates. It can be used as a ‘cover crop’ to help keep weeds away and to reduce soil erosion.