be, arr. leuven, quercus rubra, castanea sativa, quercus robur, prunus serotina, sorbus aucuparia, fagus sylvatica, lonicera periclymenum, acer pseudoplatanus, betula pendula, teucrium scorodonia, juncus effusus, corylus avellana, athyrium filix-femina, dryopteris dilatata, frangula alnus, pinus sylvestris, dryopteris carthusiana, carex pilulifera, pteridium aquilinum, vaccinium myrtillus, agrostis capillaris, molinia caerulea, urtica dioica, juncus tenuis, sambucus nigra, fraxinus excelsior, ranunculus repens, holcus lanatus, avenella flexuosa, deschampsia flexuosa, holcus mollis, polygonatum multiflorum, salix caprea, lamium galeobdolon, hedera helix, alnus glutinosa, robinia pseudoacacia, anemone nemorosa, galeopsis tetrahit, potentilla indica, rhododendron ponticum, carpinus betulus, populus canadensis, glechoma hederacea, ilex aquifolium, prunus avium, convallaria majalis, pilosella aurantiaca, scrophularia nodosa, juncus conglomeratus