be, arr. leuven, quercus robur, sorbus aucuparia, quercus rubra, prunus serotina, betula pendula, frangula alnus, lonicera periclymenum, agrostis capillaris, pinus sylvestris, holcus lanatus, holcus mollis, corylus avellana, urtica dioica, sambucus nigra, avenella flexuosa, ranunculus repens, galeopsis tetrahit, castanea sativa, deschampsia flexuosa, teucrium scorodonia, dryopteris carthusiana, molinia caerulea, dryopteris dilatata, betula pubescens, juncus effusus, alnus glutinosa, arrhenatherum elatius, amelanchier lamarckii, galium aparine, populus canadensis, calluna vulgaris, glechoma hederacea, poa trivialis, acer pseudoplatanus, rumex acetosa, cirsium arvense, fraxinus excelsior, vaccinium myrtillus, polygonatum multiflorum, hypericum perforatum, heracleum sphondylium, anthoxanthum odoratum, moehringia trinervia, rumex angiocarpus, pteridium aquilinum, salix caprea, crataegus monogyna, rumex acetosella, athyrium filix-femina, angelica sylvestris