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