monarch birch; Japanese birch
A species of birch tree native to Japan, Betula maximowicziana. Botanical term.
The monarch birch is a deciduous broadleaf tree that grows naturally in the mountains of Hokkaido and Honshu.
The bark of the monarch birch is whitish and characterized by a beautiful grain.
シラカンバ (white birch, Betula platyphylla) is a different birch species with whiter bark, more common in cooler regions.
Usually written in katakana; usually written in kana.
Rare kanji spelling; not commonly used.
The name ウダイカンバ is of Japanese origin; the exact derivation is uncertain. The rare kanji spelling 鵜松明樺 is ateji, using characters for 'cormorant', 'torch', and 'birch'.