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