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