be, arr. leuven, quercus robur, prunus serotina, holcus lanatus, pilosella aurantiaca, silene coronaria, agrostis capillaris, quercus rubra, ranunculus repens, lathyrus latifolius, arrhenatherum elatius, rumex acetosa, castanea sativa, cerastium fontanum, juncus effusus, achillea millefolium, galinsoga quadriradiata, anthoxanthum odoratum, plantago lanceolata, rumex angiocarpus, lolium perenne, stellaria graminea, oxalis corniculata, hypericum perforatum, betula pendula, tanacetum vulgare, cirsium arvense, juncus tenuis, festuca rubra, hypochaeris radicata, sorbus aucuparia, urtica dioica, trifolium dubium, pinus sylvestris, echinochloa crus-galli, erigeron canadensis, holcus mollis, poa trivialis, geranium pyrenaicum, heracleum sphondylium, rumex acetosella, ranunculus acris, trifolium repens, molinia caerulea, veronica persica, lolium multiflorum, populus canadensis, luzula campestris, claytonia perfoliata, potentilla indica, leucanthemum vulgare