be, arr. leuven, quercus rubra, quercus robur, prunus serotina, sorbus aucuparia, pinus sylvestris, betula pendula, vaccinium myrtillus, castanea sativa, frangula alnus, dryopteris dilatata, fagus sylvatica, avenella flexuosa, deschampsia flexuosa, molinia caerulea, dryopteris carthusiana, lonicera periclymenum, carex pilulifera, calluna vulgaris, pinus nigra, betula pubescens, pteridium aquilinum, ilex aquifolium, pseudotsuga menziesii, acer pseudoplatanus, teucrium scorodonia, amelanchier lamarckii, picea abies, larix kaempferi, quercus petraea, agrostis capillaris, corylus avellana, luzula pilosa, holcus mollis, juncus effusus, convallaria majalis, hedera helix, maianthemum bifolium, galium saxatile, larix decidua, rumex angiocarpus, sambucus nigra, athyrium filix-femina, ceratocapnos claviculata, salix caprea, melampyrum pratense, cytisus scoparius, populus tremula, rubus idaeus, erica tetralix, robinia pseudoacacia