This is an old and quite dark forest. These forests have characteristic herb species that can tolerate such circumstances. These are called ancient woodland plants (oudbosplanten). They are characterized by a very low dispersal capacity, so that they do not easily colonize new woodlands. When you find these plants in a forest, you can generally say that the forest has been there for centuries! ⌚
Around here, you should be able to find some of them, especially Solomon’s seal (Polygonatum multiflorum, salomonszegel).
Now venture into every part of this forest to find these plants and upload a picture!