Pteridium aquilinum is a kind of plant, which is rich in vitamins needed by human body, and has the effects of clearing intestine, invigorating stomach, relaxing muscles and activating collaterals. Blanch bracken with boiling water before eating, then soak it in cold water to remove the odor, and you can eat it. The processed bracken tastes fragrant and smooth, and with seasoning, it is cool and refreshing, which is a rare top-class dining table. It can also be fried, processed into dried vegetables, stuffed, pickled and canned.

Nostoc flagelliforme is black and slender, named after human hair and edible.

But in fact, Nostoc flagelliforme is not a vegetable, but a fungus.