be, arr. leuven, castanea sativa, quercus rubra, prunus serotina, quercus robur, fagus sylvatica, acer pseudoplatanus, lonicera periclymenum, sorbus aucuparia, dryopteris dilatata, dryopteris carthusiana, corylus avellana, athyrium filix-femina, rhododendron ponticum, betula pendula, pinus sylvestris, pteridium aquilinum, frangula alnus, ilex aquifolium, juncus effusus, fraxinus excelsior, alnus glutinosa, hedera helix, vaccinium myrtillus, molinia caerulea, teucrium scorodonia, betula pubescens, hyacinthoides non-scripta, lamium galeobdolon, carpinus betulus, urtica dioica, sambucus nigra, carex pilulifera, convallaria majalis, anemone nemorosa, potentilla indica, circaea lutetiana, carex remota, polygonatum multiflorum, luzula pilosa, avenella flexuosa, deschampsia flexuosa, plantago subulata, amelanchier lamarckii, maianthemum bifolium, glechoma hederacea, prunus avium, oxalis acetosella, dryopteris filix-mas, lysimachia vulgaris, quercus petraea