October 28, 2025 American Chestnut (Castanea dentata). Once abundant in its native range of the eastern United States, principally in the Appalachian Mountains. It was at what is now the Bronx Zoo, in the borough of The Bronx, New York City, that the Chestnut Blight (Cryphonectria parasitica) was first discovered in 1904, by 1906 it…