Raspberries are the fruit of a very vigorous deciduous thorny bush related to blackberries, roses and strawberries. Raspberries can spread by sending out roots a long way under the ground that then sprout new plants. Raspberries can take over your backyard if you don't keep them pruned.
Raspberries can be eaten fresh, made into juice, or cooked into pies. Raspberries are very good for you.