Originally Posted by Jimmy Rock

a medium-sized stone fruit (Prunus persica) with a smooth red and yellow skin, firm yellowish-pink flesh and a peachy flavor with undertones of almond; available as freestone and clingstone.
This fruit is a crossbreeding of peach and plum. Fresh fruits are used for Cobblers and Claret Cups/ punch, but you can also get it as juice and syrup
variety or mutation of the peach bearing fruit with smooth skin and (usually) yellow flesh