be, arr. leuven, quercus rubra, prunus serotina, quercus robur, castanea sativa, pinus sylvestris, molinia caerulea, sorbus aucuparia, frangula alnus, betula pendula, calluna vulgaris, amelanchier lamarckii, vaccinium myrtillus, lonicera periclymenum, avenella flexuosa, deschampsia flexuosa, rhododendron ponticum, silene coronaria, carex pilulifera, dryopteris dilatata, juncus effusus, erica tetralix, agrostis capillaris, betula pubescens, dryopteris carthusiana, pinus nigra, pilosella aurantiaca, teucrium scorodonia, fagus sylvatica, potentilla indica, pteridium aquilinum, juncus tenuis, holcus lanatus, robinia pseudoacacia, larix kaempferi, cytisus scoparius, corylus avellana, galinsoga quadriradiata, rumex angiocarpus, ilex aquifolium, geum macrophyllum, rumex acetosella, phytolacca acinosa, holcus mollis, acer pseudoplatanus, bidens frondosa, pseudotsuga menziesii, juncus conglomeratus, pinus pinaster, oxalis stricta, sambucus nigra