quercus robur, fagus sylvatica, ilex aquifolium, sorbus aucuparia, betula pubescens, frangula alnus, hedera helix, rubus idaeus, corylus avellana, lonicera periclymenum, vaccinium myrtillus, alnus glutinosa, prunus serotina, sambucus nigra, tsuga heterophylla, carex pilulifera, ceratocapnos claviculata, maianthemum bifolium, oxalis acetosella