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