be, arr. leuven, quercus robur, quercus rubra, prunus serotina, sorbus aucuparia, lonicera periclymenum, corylus avellana, populus canadensis, sambucus nigra, castanea sativa, betula pendula, acer pseudoplatanus, frangula alnus, alnus glutinosa, fraxinus excelsior, polygonatum multiflorum, urtica dioica, dryopteris carthusiana, dryopteris dilatata, athyrium filix-femina, galeopsis tetrahit, hedera helix, glechoma hederacea, pinus sylvestris, juncus effusus, prunus avium, holcus mollis, betula pubescens, teucrium scorodonia, fagus sylvatica, robinia pseudoacacia, anemone nemorosa, pteridium aquilinum, galium aparine, alnus incana, amelanchier lamarckii, angelica sylvestris, molinia caerulea, holcus lanatus, agrostis capillaris, ranunculus repens, ribes rubrum, heracleum sphondylium, moehringia trinervia, carpinus betulus, geum urbanum, viburnum opulus, salix caprea, lamium galeobdolon, crataegus monogyna, humulus lupulus