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