I recently learned about this thing that fruiting bodies have called a Calyx- it's the green leafy like bit at the base of a flower. On some fruit, like apples, the calix grows to form a skin around the fruit. On others like the eggplant/aubergine it becomes the leafy green bit at the base
On tomatillas it forms these elegant little shells.
What if the ruffly side bits. (I don't know what this part of a dress is called) on princess peach are a calyx?