Palatine Watershed
In the southern Palatine Forest, the German part of the Wasgau, the Palatine Watershed begins on the French border in the area of the Erlenkopf hill (473 m above NHN), where it is a continuation of the watershed in the northern Vosges. Always generally running from southwest to northeast it initially heads eastwards past Eppenbrunn and Pirmasens over the Großer Schiffelskopf () and reaches the region of Gräfenstein Land. From there it runs up the Hortenkopf () in the central Frankenweide. Several kilometres it passes through the hamlet of Johanniskreuz (), one of the highest settlements in the Palatine Forest. The watershed then reaches the area west of Waldleiningen in the Lower Frankenweide.
Palatinate Forest
By contrast, spruce, Douglas fir, larch, and Weymouth pine are not native to the forested mountain range. Spruce prefer cool, shady locations and are therefore often found in valleys, hollows and on the lower slopes of hills, while the Douglas fir is found in widely differing locations due to its high adaptability. The sweet chestnut was not originally an indigenous tree species, but was naturalized by the Romans in the area of the present-day Palatinate. Since it prefers a mild climate (see temperature) like the grape vine it is found on the eastern edge of the Palatinate Forest, the Haardt, in pure or nearly monocultures and represents about 4 percent of the forest area there.