nl, twente, quercus robur, sorbus aucuparia, lonicera periclymenum, frangula alnus, fagus sylvatica, prunus serotina, ilex aquifolium, dryopteris dilatata, betula pendula, quercus rubra, avenella flexuosa, hedera helix, deschampsia flexuosa, vaccinium myrtillus, dryopteris carthusiana, corylus avellana, pinus sylvestris, amelanchier lamarckii, betula pubescens, maianthemum bifolium, polygonatum multiflorum, sambucus nigra, ceratocapnos claviculata, molinia caerulea, rubus idaeus, holcus mollis, pteridium aquilinum, galeopsis tetrahit, agrostis capillaris, carex pilulifera, acer pseudoplatanus, oxalis acetosella, pseudotsuga menziesii, moehringia trinervia, populus tremula, prunus avium, fraxinus excelsior, prunus padus, picea abies, alnus glutinosa, rabelera holostea, anemone nemorosa, poa nemoralis, sambucus racemosa, urtica dioica, holcus lanatus, melampyrum pratense, rubus gratus, calluna vulgaris, athyrium filix-femina