First of all, we must find out which is the female flower and the female flower. This is crucial. Pumpkins, watermelons, cucumbers and melons are basically like this. First, look at the receptacle under its petals, which are obviously different. There is a small melon under this receptacle, which is the female flower, that is, the female flower. The appearance of female flowers also means that small fruits can grow and bear fruit. This one in the picture can be seen from the receptacle as a female flower.

There is nothing under the petals of this flower, no small melon, no bulge, and it will wither and fall off after the flowering period. It is the male flower.

Distinguish the male flower from the female flower, and you can also look at its stamens. Some of the stamens look like cylinders, which are thicker, that is, female flowers.

The stamen in the middle of the petals has a lot of pollen, and the slightly thinner one is the male flower. These all need to be carefully looked at to see. Therefore, the first method is recommended for identification.