be, arr. leuven, quercus rubra, quercus robur, prunus serotina, pinus sylvestris, sorbus aucuparia, betula pendula, frangula alnus, molinia caerulea, pinus nigra, avenella flexuosa, dryopteris dilatata, deschampsia flexuosa, vaccinium myrtillus, dryopteris carthusiana, castanea sativa, calluna vulgaris, lonicera periclymenum, amelanchier lamarckii, fagus sylvatica, carex pilulifera, betula pubescens, agrostis capillaris, pseudotsuga menziesii, larix kaempferi, juncus effusus, ilex aquifolium, pteridium aquilinum, acer pseudoplatanus, teucrium scorodonia, rumex angiocarpus, rhododendron ponticum, corylus avellana, picea abies, robinia pseudoacacia, erica tetralix, rumex acetosella, holcus lanatus, holcus mollis, sambucus nigra, ceratocapnos claviculata, athyrium filix-femina, cytisus scoparius, pinus strobus, larix decidua, alnus glutinosa, galeopsis tetrahit, maianthemum bifolium, salix caprea, agrostis vinealis, calamagrostis epigejos