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그루안

East Asian white birch

Betula platyphylla var. japonica · Betulaceae · 자작나무

How to spot it

Marked by white bark that peels sideways like paper.

Look

Leaves
Leaves are triangular-ovate, 5 to 7 cm long, with double teeth and 6 to 7 (8) pairs of veins.
Flowers
Flowers open from April to early May on a monoecious tree; female catkins hang down.
Fruit
The fruit spike is cylindrical, 4 cm long, and hangs down; the small nutlets are narrow-elliptic and winged, ripening in September to October.
Bark
The bark is white and peels sideways like paper.

Where it grows

In Korea
Native (Korean Peninsula)
Native to
In the Korean Peninsula it grows in Pyeonganbuk-do and Hamgyeongnam/bukdo; it also grows in Japan, China and eastern Russia.
Ecology
Grows at 200 to 2,100 m elevation on burned ground and landslide sites.

Sources