Bosc pear
![Bosc Pear, from The Pears of New York (1921) by Ulysses Prentiss Hedrick[1]](/uploads/202501/01/Hedrick_(1921)_-_Beurre_Bosc1513.jpg)

The Beurré Bosc or Bosc is a cultivar of the European Pear (Pyrus communis) grown in the northwestern U.S. states of California, Washington, and Oregon; Australia; as well as in British Columbia, Ontario and Europe, where it is sometimes called Kaiser.