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