Oak in Raduň, Remarkable solitary tree in Raduň, Czech Republic

The Oak in Raduň is a memorial tree on the right bank of the Raduňka stream by the Raduňské rybníky pond system, in the Opavská pahorkatina hills of the Moravian-Silesian Region. Its trunk is hollow, and a failed protective masonry from the 1950s was removed in 2000, after which the tree was treated with conservation and dead branches were cut.

In 2000, an unsuitable protective masonry wall built around the trunk in the 1950s was removed, and the tree was treated with conservation measures and pruned of dead branches. By 2009–2010 its trunk was hollow and its condition was not the best.

The oak is a protected memorial tree (památný strom) of the Czech Republic. Its hollow trunk was fitted with a protective masonry lining in the 1950s, removed in 2000, after which the tree was treated by conservation and dead branches were cut. At its base grows the edible beefsteak fungus (Fistulina hepatica), locally called ox or deer tongue, fruiting in late summer and autumn.

The trunk stands on a field by the Raduňka stream, right bank, near the Raduňské rybníky ponds, and vegetation and crops make it harder to reach. There are no marked paths to the tree itself, so approach through the fields with care.

At the foot of the trunk grows the rare edible bracket fungus Fistulina hepatica, known locally as ox tongue or deer tongue; its fruiting bodies appear in late summer and autumn. The hollow trunk lost its unsuitable 1950s protective brickwork in 2000.