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