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