Lithocarpus edulis, a Japanese evergreen tree with distinctive leaves and edible acorns

Lithocarpus edulis, commonly known as the Japanese stone oak, is a fascinating evergreen tree native to Japan. Belonging to the Fagaceae family, it is a relative of the oak tree. This species is prized for its distinctive appearance and edible nuts.

The tree typically grows to a height of 15 meters, though it can sometimes reach greater heights. It has a spreading habit and a dense, rounded crown. The bark is rough and furrowed, often developing a dark, almost blackish hue with age.

One of the most striking features of Lithocarpus edulis is its leaves. They are leathery, glossy, and a deep green color. The leaves are typically ovate or oblong in shape, with a pointed tip and a tapered base. Their margins are entire, meaning they lack teeth or lobes. The leaves are arranged alternately on the branches.

In the spring, the tree produces small, inconspicuous flowers. These are followed by acorns, which are similar in appearance to those of oak trees but often smaller and with a slightly different shape. The acorns are edible and have a nutty flavor, though they may require soaking to remove tannins before consumption.

Lithocarpus edulis is a slow-growing tree, but it is highly adaptable and can thrive in a variety of soil conditions. It is often cultivated as an ornamental tree in gardens and parks, valued for its attractive foliage and unique appearance.

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