蓼科荞麦属

例句：

1. 1. The buckwheat is a traditional Chinese food ingredient.
   荞麦是中国的传统食材。
2. 2. Buckwheat has been used in traditional Chinese medicine for thousands of years.
   荞麦在中国传统医学中被使用了数千年。
3. 3. Buckwheat is also known as "Chinese millet" because it resembles the shape of a millet grain.
   荞麦也被称为“中国小米”，因为它的形状类似于小米。