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