be, arr. leuven, quercus robur, quercus rubra, prunus serotina, castanea sativa, silene coronaria, betula pendula, holcus lanatus, ranunculus repens, agrostis capillaris, sorbus aucuparia, pinus sylvestris, pilosella aurantiaca, lonicera periclymenum, galinsoga quadriradiata, claytonia perfoliata, heracleum sphondylium, molinia caerulea, arrhenatherum elatius, potentilla indica, juncus effusus, lathyrus latifolius, urtica dioica, oxalis corniculata, cerastium fontanum, achillea millefolium, echinochloa crus-galli, amelanchier lamarckii, frangula alnus, corylus avellana, erigeron canadensis, plantago lanceolata, tanacetum vulgare, phytolacca acinosa, lolium perenne, hypericum perforatum, calluna vulgaris, holcus mollis, cirsium arvense, rumex acetosa, alnus glutinosa, geranium pyrenaicum, teucrium scorodonia, juncus tenuis, rumex angiocarpus, sambucus nigra, galeopsis tetrahit, lepidium didymum, poa trivialis, rumex acetosella, lysimachia vulgaris