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