The peach is a member of the rose family. The fruits of many members of the family are called stone fruits or drupes for their single, hard seed and fleshy covering. Cherry, apricot, plum and nectarine are also drupes. The rose hip is a drupe, although not so fleshy it's just as edible and rich in vitamins as its cousins. The bramble-y members of the Rose family, including blackberry and raspberry produce an aggregate of drupes, each one with its single hard seed.