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