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