Wild Indigo (Baptisia 'Pink Lemonade')

Baptisia ‘Pink Lemonade’ is a hybrid cultivar, meaning it’s a result of crossbreeding two or more parent species. Therefore, it doesn’t have a single “native region” in the traditional sense. Instead, we need to consider the native regions of its likely parent species:

* **Baptisia species** are generally native to **North America**, specifically the eastern and central United States.

Given the hybrid nature of ‘Pink Lemonade’, its genetic heritage is from the wild Indigo species found in the **eastern and central United States**. It would not have a single specific location but would be derived from the genetic material of wild species found in that broad area.

Therefore, the answer is: **Eastern and Central United States (North America)**