nl, zuidoost-friesland, quercus robur, sorbus aucuparia, prunus serotina, frangula alnus, amelanchier lamarckii, lonicera periclymenum, betula pendula, dryopteris dilatata, quercus rubra, avenella flexuosa, pinus sylvestris, ceratocapnos claviculata, deschampsia flexuosa, dryopteris carthusiana, betula pubescens, molinia caerulea, fagus sylvatica, vaccinium myrtillus, agrostis capillaris, ilex aquifolium, holcus mollis, calluna vulgaris, galeopsis tetrahit, carex pilulifera, juncus effusus, holcus lanatus, maianthemum bifolium, corylus avellana, pseudotsuga menziesii, polygonatum multiflorum, pteridium aquilinum, sambucus nigra, hedera helix, rubus idaeus, alnus glutinosa, rumex acetosella, rumex angiocarpus, urtica dioica, larix kaempferi, acer pseudoplatanus, prunus padus, populus tremula, castanea sativa, lysimachia vulgaris, stellaria media, geum macrophyllum, poa trivialis, moehringia trinervia, claytonia sibirica, galium saxatile