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