|Buckwheat (Fagopyrum esculentum) is a plant cultivated for its grain-like seeds, and also used as a cover crop. To distinguish it from a related species, Fagopyrum tataricum that is also cultivated as a grain in the Himalayas, primarily in Nepal, Bhutan and India, and from the less commonly cultivated Fagopyrum acutatum, it is also known as Japanese buckwheat and silverhull buckwheat.
The plant has a branching root system with one primary root that reaches deeply into the moist soil. Buckwheat has triangular seeds and produces a flower that is usually white, although can also be pink or yellow. Buckwheat branches freely, as opposed to tillering or producing suckers, causing a more complete adaption to its environment than other cereal crops. The seed hull density is less than that of water, making the hull easy to remove. (Source: Wikipedia)