be, arr. leuven, castanea sativa, quercus robur, lonicera periclymenum, betula pendula, pteridium aquilinum, frangula alnus, teucrium scorodonia, quercus rubra, fagus sylvatica, carex pilulifera, molinia caerulea, vaccinium myrtillus, sorbus aucuparia, pinus sylvestris, calluna vulgaris, prunus serotina, ilex aquifolium, quercus petraea, avenella flexuosa, hedera helix, deschampsia flexuosa, betula pubescens, corylus avellana, acer pseudoplatanus, holcus mollis, dryopteris carthusiana, carpinus betulus, polygonatum multiflorum, dryopteris dilatata, cytisus scoparius, convallaria majalis, agrostis capillaris, populus tremula, prunus avium, luzula pilosa, mespilus germanica, salix caprea, athyrium filix-femina, anemone nemorosa, juncus effusus, robinia pseudoacacia, hyacinthoides non-scripta, erica tetralix, melampyrum pratense, luzula multiflora, hypericum pulchrum, erica cinerea, sambucus nigra, lamium galeobdolon, pinus pinaster