''Betula schmidtii'', the iron birch or Schmidt's birch, is a species of flowering plant in the family

Betulaceae Betulaceae, the birch family, includes six genera of deciduous nut-bearing trees and shrubs, including the birches, alders, hazels, hornbeams, hazel-hornbeam, and hop-hornbeams, numbering a total of 167 species. They are mostly natives of ...

. It is native to Manchuria, Korea,

Primorsky Krai Primorsky Krai, informally known as Primorye, is a federal subjects of Russia, federal subject (a krais of Russia, krai) of Russia, part of the Far Eastern Federal District in the Russian Far East. The types of inhabited localities in Russia, ...

of the Russian Far East, and Japan. A tree reaching with nearly black bark, its wood is so dense that it does not float, and is used where a tough, durable material is desired.

References

schmidtii Flora of Manchuria Flora of Korea Flora of Primorsky Krai Flora of Japan Plants described in 1865 {{Fagales-stub