In addition to beech, the oak is another characteristic tree of the Palatinate Forest, albeit botanically speaking they are mainly sessile oak rather than English oak. It is the main tree species of larger, sometimes centuries-old, stands in the regions around Johanniskreuz, Eschkopf and Weißenberg and may also be found further south between Fischbach and Eppenbrunn, where, as well as the plateaus of the central Palatinate Forest, it prefers sunnier slopes (west to south-east facing slopes). But in the rest of Palatinate Forest, it is on the increase and usually forms, together with beech, often very natural, primeval, mixed forest (natural forest), which enjoys special protection as a core zone of the Palatine Forest-North Vosges Biosphere Reserve (see biosphere reserve). In addition, from a forestry point of view the oaks of the Palatinate Forest are a particularly high priority because the wood veneer produced from them is recognized worldwide as being of unique quality.