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