be, arr. leuven, quercus robur, quercus rubra, prunus serotina, sorbus aucuparia, lonicera periclymenum, castanea sativa, corylus avellana, frangula alnus, betula pendula, dryopteris dilatata, dryopteris carthusiana, acer pseudoplatanus, sambucus nigra, populus canadensis, alnus glutinosa, athyrium filix-femina, pinus sylvestris, juncus effusus, fraxinus excelsior, polygonatum multiflorum, urtica dioica, molinia caerulea, fagus sylvatica, betula pubescens, hedera helix, teucrium scorodonia, pteridium aquilinum, galeopsis tetrahit, vaccinium myrtillus, amelanchier lamarckii, alnus incana, glechoma hederacea, prunus avium, avenella flexuosa, agrostis capillaris, anemone nemorosa, deschampsia flexuosa, holcus mollis, maianthemum bifolium, angelica sylvestris, holcus lanatus, robinia pseudoacacia, lamium galeobdolon, carex pilulifera, ranunculus repens, moehringia trinervia, salix caprea, lysimachia vulgaris, viburnum opulus, ribes rubrum