Squash are fleshy vegetables protected by a hard rind.
They belong to the plant family that includes melons and cucumbers.
Among substances present in summer squash are these two phytochemicals, coumarins and flavonoids. The skin and rind of summer squash are rich in the nutrient beta-carotene, but the fleshy portion of this vegetable is not. To gain the full nutritional benefits of this vegetable, the skins or rinds must be eaten.
even the flowers are eaten