1. Different appearance

Sunflower has a small disk and a variety of colors. In addition to the common yellow, it also has purple, red, orange and other colors. The height of the whole plant is about 30 cm, and its petals occupy a larger area of the whole disk than the seeds. The color of sunflower is only yellow, the plant height is one meter, five to three meters, and the whole seed disk occupies two-thirds of the flower disk area. From these appearances, they are completely different plants

2. Different seeds

Sunflower has very small seeds, and some varieties do not have seeds, so its seeds can not be eaten directly. Sunflower seeds are the "melon seeds" we often eat. The seeds are much larger than sunflower seeds and can be eaten directly. Sunflower seed oil on the market is extracted from its seeds

3. Different efficacy

In addition to its ornamental function, sunflower also has pharmacological function. The whole plant of purslane can be used as medicine, which has the effect of clearing heat and detumescence. It can be used to treat scalds and bruises. Hairy purslane can treat knife wounds. The ancients smashed it and applied it directly to the wound to stop bleeding; The main function of sunflower is to reduce blood pressure and fat, strengthen stomach and diuresis

4. Different florescence

Sunflower blooms in June and July every year, and the flowering period is relatively short; Sunflower can bloom in summer and winter, and it grows rapidly in the growth period. It will bloom and bear seeds in more than two months, and the flowers will bloom for about half a month