be, arr. leuven, quercus rubra, castanea sativa, prunus serotina, quercus robur, sorbus aucuparia, fagus sylvatica, acer pseudoplatanus, lonicera periclymenum, pinus sylvestris, betula pendula, dryopteris dilatata, dryopteris carthusiana, frangula alnus, corylus avellana, vaccinium myrtillus, potentilla indica, robinia pseudoacacia, amelanchier lamarckii, sambucus nigra, molinia caerulea, ilex aquifolium, carex pilulifera, avenella flexuosa, teucrium scorodonia, pteridium aquilinum, deschampsia flexuosa, athyrium filix-femina, hedera helix, juncus effusus, rhododendron ponticum, polygonatum multiflorum, pinus nigra, prunus avium, fraxinus excelsior, convallaria majalis, lamium galeobdolon, urtica dioica, pseudotsuga menziesii, agrostis capillaris, juncus tenuis, galeopsis tetrahit, calluna vulgaris, betula pubescens, salix caprea, maianthemum bifolium, larix kaempferi, silene coronaria, anemone nemorosa, holcus mollis, alnus glutinosa