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