Sunflower seed is the fruit of sunflower. Sunflower belongs to the genus Helianthus in Compositae. Millet. Another name is sunflower, which is also called passion flower, chrysanthemum and sunflower in ancient books in China, sunflower in Europe and sungrass, Japanese lotus and rising sun flower in some countries. Sunflowers originated in southwest North America. It was originally cultivated in the wild. After cultivation and appreciation, it quickly spread all over the world, and/kloc-was introduced to Europe at the beginning of the 6th century. Sunflowers have been cultivated in China for at least 400 years. The colors of sunflower seeds are white, light gray, black, brown and purple, with wide stripes, narrow stripes and no stripes.

At least 3~4 species (white, yellow, black, etc. )