Tartary Buckwheat (scientific name: Tartary Buckwheat. ), alias Bobai, Wu Mai, overseas Chinese, etc. Millet. The stem is erect, 30-70 cm high, branched, green or purplish, with slender longitudinal edge, mastoid on one side, triangular leaf width, 2-7 cm long, mastoid along both sides of vein, long lower leaf petiole and short upper leaf petiole. It grows in fields, roadsides, hillsides, river valleys and other humid areas, and is distributed in northeast, north and northwest China.

Most of them grow in fields, roadsides, hillsides, river valleys and other places at an altitude of 500-3900 meters; Like cool and humid, not resistant to high temperature, dry wind and frost. The accumulated temperature of 10 ~ 15℃ can meet its requirements for heat. When the soil temperature is above 65438 06℃, the seeds can germinate in about 4 ~ 5 days. The optimum temperature for flowering and fruiting is 26 ~ 30℃. When the temperature is-1℃, the flowers will die, and even the whole plant will die at -2℃.