be, arr. leuven, fagus sylvatica, quercus robur, pteridium aquilinum, lonicera periclymenum, avenella flexuosa, deschampsia flexuosa, vaccinium myrtillus, betula pendula, carex pilulifera, castanea sativa, dryopteris carthusiana, sorbus aucuparia, teucrium scorodonia, ilex aquifolium, holcus mollis, quercus petraea, pinus sylvestris, frangula alnus, luzula pilosa, carpinus betulus, dryopteris dilatata, betula pubescens, quercus rubra, prunus serotina, molinia caerulea, hedera helix, calluna vulgaris, acer pseudoplatanus, oxalis acetosella, agrostis capillaris, athyrium filix-femina, corylus avellana, anemone nemorosa, convallaria majalis, hyacinthoides non-scripta, dryopteris filix-mas, juncus effusus, polygonatum multiflorum, milium effusum, melampyrum pratense, moehringia trinervia, lamium galeobdolon, digitalis purpurea, populus tremula, rabelera holostea, pseudotsuga menziesii, hypericum pulchrum, cytisus scoparius, scrophularia nodosa, mespilus germanica