Pyrus communis
Bosc Pear is also known as: Beurré Bosc or Kaiser.
It’s a cultivar of the European Pear (Pyrus communis).
It’s grown in the USA, in California, Washington, and Oregon; Australia, as well as in British Columbia, Ontario and Europe, where it is sometimes called Kaiser.
Characteristics
A firm almost crunchy pear with a long tapering neck and rough reddish brown skin. The flesh is grainy and dense. It holds it shape well when cooked and is good for baking, broiling and poaching.
Flavour
Aromatic with dense, sweet spicy flesh and with the skin remaining brown on ripening.
To ripen: leave them at room temperature and only refrigerate after the pears have ripened.
Availability: October-May; Imported Pears: March-July.
My Favourite Pastime 
The boys have a major pear addiction! We have two Bartlett pear trees and right now they are picking the pears and eating them rock hard!
Hi Gretchen,
I always admire your little garden and all the great things that it produces. How wonderful that you even have a Bartlett pear tree. I hope you had a good season!
Liz