Betula alnoides that, by time it matures, reaches a diameter of by . The peduncle is long while the diameter of the bracts is only . The seeds are ripe from March to May and are long while the flowers bloom from October to January. "Betula alnoides" inner bark is edible and is used for making cakes and bread. It is also considered to be an antidote against snakebites and is used to treat dislocated bones. Betula alnoides Betula alnoides (; , , literally: "tiger power") is a species of birch that can be found in natural condition in such countries as
Betula lenta male catkins pendulous, the female catkins erect. The fruit, maturing in fall, is composed of numerous tiny winged seeds packed between the catkin bracts. Seed production mainly occurs in trees that are between 40 and 200 years old, although light crops may occur as early as 15 years and as long as the tree lives. Contrary to common knowledge, the lifespan of "B. lenta" is typically around 200 years, and many individuals will reach 250 and even 300 years. The oldest known "B. lenta" has been confirmed to be 368 years old, and the species may live even longer than