The , scientifically known as Betula schmidtii (also called Schmidt’s birch), is widely considered the strongest and densest birch species in the world. Named after the botanist Fedor Schmidt, who first identified it, this rare deciduous tree is famous for wood that is so heavy and compact it actually sinks in water. Natural Habitat and Range

In these regions, it often grows in polydominant broadleaf forests alongside oak, linden, and hornbeam. It is currently listed as a in the Red Book of the Russian Federation due to its slow growth and specific habitat requirements. Physical Characteristics

While other birch species like River Birch ( Betula nigra ) are prized for landscaping and erosion control, the remains a rare, "iron-like" botanical wonder of the northern temperate forests.

Because the wood does not splinter easily and can withstand immense shock, it has been used for applications where metal might be too expensive or heavy. Historically, it was favored for making tool handles, mallet heads, and even machinery bearings. In the early days of aviation, before modern synthetic materials, the dense wood was sometimes utilized in the construction of airplane propellers and runway skids for sleds.

It is approximately 1.5 to 3 times stronger than common birch species like Silver Birch ( Betula pendula ).