Cereals/Cereais: Buckwheat/Trigo Sarraceno

Wikipedia wrote:Buckwheat (Fagopyrum esculentum) is a plant cultivated for its grain-like seeds and as a cover crop. To distinguish it from a related species, Fagopyrum tataricum, it is also known as Japanese buckwheat[2] and silverhull buckwheat.[2]
Despite the name, buckwheat is not related to wheat, as it is not a grass. Instead, buckwheat is related to sorrel, knotweed, and rhubarb. Because its seeds are eaten and rich in complex carbohydrates, it is referred to as a pseudocereal. The cultivation of buckwheat grain declined sharply in the 20th century with the adoption of nitrogen fertilizer that increased the productivity of other staples.

Wikipédia wrote:Trigo-sarraceno (Fagopyrum esculentum), também chamado de trigo-mourisco, é uma planta da família Polygonaceae. Os grãos do trigo-sarraceno são comestíveis e parecem-se aos grãos dos cereais, sendo ricos em Rutina, mas são, na verdade, sementes de um fruto aparentado com o ruibarbo e as azedas.[1] Para ser consumido, a casca exterior deve ser removida, um processo que exige equipamento próprio de moagem, devido à sua forma pouco habitual.