Species: F. tataricum
Binomial name: Fagopyrum tataricum (L.) Gaertn
Other Names: duckwheat, India buckwheat, India wheat, green buckwheat or bitter buckwheat
Special feature: Tartary buckwheat is bitterer, but contains more rutin than common buckwheat. It also contains quercitrin.
Tartar buckwheat was domesticated in east Asia, and is also cultivated in Europe and North America. While it is an unfamiliar food in the West, it is still eaten in the Himalayan region today. (Source: Wikipedia)