What is boston desert?

As an AI language model, I am not sure what you meant by "Boston desert" since Boston is located in a region of the United States that is not known for its deserts. However, here are some possible explanations:

• Boston does not have a desert: Boston is the capital city of the state of Massachusetts, which is located in the northeastern region of the US. This region is known for its cold winters, humid summers, and abundant forests and wildlife, but not for its deserts.
• Boston Cream Pie: One dessert that is sometimes associated with Boston is the Boston Cream Pie. However, this is not a desert, but a cake-like dessert that consists of two layers of sponge cake filled with vanilla custard and topped with chocolate glaze.
• Boston Terrier: Another thing that might come to mind when you hear "Boston desert" could be the Boston Terrier, a small breed of dog that was developed in Boston in the late 1800s. However, this is not a dessert either, but a lively and affectionate companion animal.

In conclusion, the concept of a "Boston desert" does not exist in the literal sense, but there are several possible interpretations of what you might have meant.