Buckwheat (Fagopyrum Esculentum) is an annual upright plant reaching 70 cm in height. In June-September, the plant enters a period of flowering when tangle-like brushes with red or white flowers on long axillary peduncles appear from the axils of the leaves. The buckwheat fruit ripens in September-October. This is a trihedral single-seed nut of rhombic or round shape 5-7 mm in thickness and length.