Summer oak (Quercus robur)
Other names: Scrub Oak, Oak, Scrub Oak, Summer Oak
Harm score: 1 (Natural substances)
Summer oak, scientifically known as Quercus robur, is a very widespread and popular tree species in the Czech Republic. It can often be found in urban parks, forests, but also in secluded areas, where it serves as an important landscape element. In the vernacular, it is also sometimes called a flint tree, a summer tree, or oak in English. It is a deciduous tree and its lifespan is often estimated at around 300-400 years. Its leaves are alternate, entire to shallowly pinnate. The fruit is an acorn, which is known for its high starch content.
Summer oak is used in industry mainly for its wood, which is tough, heavy and very durable. In addition, it is characterised by its high resistance to rot. For this reason, it is often used in the manufacture of furniture, floors and doors, as well as in barrel making, where oak barrels produce unforgettable tastes in wine and whisky. Summer oak wood is also used in shipbuilding, in the manufacture of railway sleepers or as fuel. The acorns of the summer oak are a source of food for forest animals and were also used as pig feed in the past. In folk medicine, acorns of the summer oak have been used as a remedy in the fight against diarrhoea and haemorrhoids.