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