In the downtown of Kazan, between Nekrasova and Chapova streets, there is a small park called "Hermitage Garden". Before the Revolution, this area was private and passed from one owner to another. The exact date when it became a park is not known. The park was organized as a central park of the city in the 20 th century due to its convenient location and its beautiful scenery. Unfortunately, the non-central parts of the park are now in a semi-abandoned state. The variety of trees is still great: Norway maple, linden, birch, aspen, poplar, hawthorn, larch. However, these are all old trees and there are very few young trees. There are a lot of box elders in the park. Box elder or ash-leaved maple ( Acer negundo L.) is native to North America. In the 17 th century, the seeds of this species of maple were planted in parks and squares in Europe, and at the end of the 18 th century - in Russia as a rapidly growing ornamental tree. However, in the 20 th century the box elde...