be, arr. leuven, quercus robur, prunus serotina, quercus rubra, sorbus aucuparia, betula pendula, castanea sativa, lonicera periclymenum, pinus sylvestris, acer pseudoplatanus, teucrium scorodonia, frangula alnus, corylus avellana, dryopteris carthusiana, dryopteris dilatata, fagus sylvatica, sambucus nigra, agrostis capillaris, vaccinium myrtillus, molinia caerulea, pteridium aquilinum, avenella flexuosa, urtica dioica, holcus mollis, deschampsia flexuosa, carex pilulifera, betula pubescens, convallaria majalis, glechoma hederacea, salix caprea, hedera helix, fraxinus excelsior, athyrium filix-femina, moehringia trinervia, holcus lanatus, polygonatum multiflorum, pinus nigra, carpinus betulus, juncus effusus, galeopsis tetrahit, calluna vulgaris, robinia pseudoacacia, prunus avium, anemone nemorosa, populus tremula, crataegus monogyna, ilex aquifolium, luzula pilosa, dryopteris filix-mas, geum urbanum, viola riviniana