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그루안

European Hornbeam

Carpinus betulus · Betulaceae · 유럽서어나무

How to spot it

Doubly toothed leaves, prominent veins, small nutlets with three-lobed bracts, and a fluted trunk.

Look

Leaves
Alternate ovate simple leaves with doubly toothed margins and prominent veins.
Flowers
Yellow male catkins and green female catkins appear before the leaves; wind-pollinated.
Fruit
Small, hard brown nutlets hang with three-lobed bracts.
Bark
Young bark is smooth gray-brown; the trunk develops vertical ridges.

Where it grows

Native to
Native from Europe to Iran.
Ecology
Sources record that the fruit feeds small birds and mammals and the leaves feed the larvae of several moths.

Sources