be, arr. leuven, castanea sativa, lonicera periclymenum, quercus robur, fagus sylvatica, sorbus aucuparia, acer pseudoplatanus, corylus avellana, pteridium aquilinum, betula pendula, hedera helix, quercus rubra, polygonatum multiflorum, teucrium scorodonia, carpinus betulus, betula pubescens, dryopteris carthusiana, frangula alnus, prunus serotina, athyrium filix-femina, fraxinus excelsior, vaccinium myrtillus, prunus avium, carex pilulifera, deschampsia flexuosa, anemone nemorosa, hyacinthoides non-scripta, luzula pilosa, avenella flexuosa, ilex aquifolium, dryopteris dilatata, quercus petraea, convallaria majalis, holcus mollis, sambucus nigra, lamium galeobdolon, pinus sylvestris, molinia caerulea, dryopteris filix-mas, oxalis acetosella, mespilus germanica, milium effusum, maianthemum bifolium, juncus effusus, arum maculatum, circaea lutetiana, carex sylvatica, alnus glutinosa, populus tremula, crataegus monogyna, salix caprea