Perry is a traditional drink made from fermented pear juice, and in recent years has enjoyed a resurgence in interest, along with its cousin cider. Perry is now sometimes called pear cider and although this is incorrect, the term seems to have made it more accessible to consumers.
Perry pears are closely related to mainstream pears, and will cross-polinate with them, and both are classified in the species Pyrus communis. However it is likely that perry pears are a distinct sub-species.
If grown on seedling rootstocks perry pears can be very long-lived, as well as growing to a considerable height and spread.