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