prunus serotina, robinia pseudoacacia, pseudotsuga menziesii, acer pseudoplatanus, atrichum undulatum, brachythecium rutabulum, dicranella heteromalla, dryopteris filix-mas, galeopsis tetrahit, hypnum cupressiforme, poa nemoralis, quercus robur, sambucus nigra, stellaria media, urtica dioica