be, arr. leuven, quercus robur, fraxinus excelsior, lonicera periclymenum, corylus avellana, acer pseudoplatanus, athyrium filix-femina, alnus glutinosa, sorbus aucuparia, dryopteris carthusiana, betula pubescens, fagus sylvatica, hedera helix, sambucus nigra, dryopteris dilatata, juncus effusus, circaea lutetiana, anemone nemorosa, urtica dioica, frangula alnus, betula pendula, polygonatum multiflorum, carex remota, carpinus betulus, glechoma hederacea, geum urbanum, primula elatior, filipendula ulmaria, quercus rubra, viburnum opulus, lamium galeobdolon, ajuga reptans, lysimachia vulgaris, deschampsia cespitosa, angelica sylvestris, prunus avium, prunus serotina, ficaria verna, crataegus monogyna, cardamine pratensis, castanea sativa, oxalis acetosella, populus canadensis, pteridium aquilinum, ranunculus repens, poa trivialis, ribes rubrum, molinia caerulea, cirsium palustre, galium aparine, dryopteris filix-mas