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