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