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