melon seeds, corn kernels and ginkgo.

1. Sunflower: You can harvest seeds, and melon seeds are edible food.

2. Corn: Corn kernels can be picked from the plant after maturity. Corn kernels can not only be eaten as food, but also be reprocessed into various delicacies and snacks.

3. Ginkgo biloba: After the result, it becomes ginkgo, which is a kind of food. It can be directly cooked and tastes crisp and sweet.