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