Refers to the fruit, the tree, or cherry-related items. In Japanese, さくらんぼ is more common for the fruit, while チェリー is often used in loanword contexts like cherry pie, cherry blossom flavor, or as a modifier.
One cherry pie, please.
This ice cream is cherry flavored.
This ice cream is cherry-flavored.
I removed the pits from the cherries before making the pie.
Loanword from English 'cherry'.