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