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