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