be, arr. leuven, castanea sativa, quercus robur, quercus rubra, fagus sylvatica, sorbus aucuparia, lonicera periclymenum, prunus serotina, dryopteris carthusiana, betula pendula, pinus sylvestris, acer pseudoplatanus, dryopteris dilatata, frangula alnus, pteridium aquilinum, corylus avellana, vaccinium myrtillus, ilex aquifolium, teucrium scorodonia, carex pilulifera, molinia caerulea, betula pubescens, avenella flexuosa, hedera helix, athyrium filix-femina, deschampsia flexuosa, carpinus betulus, juncus effusus, fraxinus excelsior, sambucus nigra, quercus petraea, luzula pilosa, polygonatum multiflorum, hyacinthoides non-scripta, convallaria majalis, urtica dioica, holcus mollis, lamium galeobdolon, prunus avium, alnus glutinosa, anemone nemorosa, pinus nigra, dryopteris filix-mas, oxalis acetosella, pseudotsuga menziesii, salix caprea, calluna vulgaris, moehringia trinervia, picea abies, circaea lutetiana, galeopsis tetrahit