be, arr. leuven, prunus serotina, quercus robur, quercus rubra, sorbus aucuparia, betula pendula, lonicera periclymenum, frangula alnus, pinus sylvestris, dryopteris dilatata, castanea sativa, avenella flexuosa, deschampsia flexuosa, dryopteris carthusiana, fagus sylvatica, molinia caerulea, amelanchier lamarckii, vaccinium myrtillus, betula pubescens, acer pseudoplatanus, ilex aquifolium, carex pilulifera, calluna vulgaris, sambucus nigra, corylus avellana, agrostis capillaris, hedera helix, pinus nigra, pteridium aquilinum, teucrium scorodonia, robinia pseudoacacia, pseudotsuga menziesii, holcus mollis, polygonatum multiflorum, galeopsis tetrahit, larix kaempferi, rhododendron ponticum, juncus effusus, urtica dioica, ceratocapnos claviculata, holcus lanatus, prunus avium, convallaria majalis, alnus glutinosa, maianthemum bifolium, rubus gratus, populus tremula, cytisus scoparius, fraxinus excelsior, athyrium filix-femina, moehringia trinervia