be, arr. leuven, erigeron canadensis, silene coronaria, claytonia perfoliata, prunus serotina, oxalis corniculata, agrostis capillaris, quercus robur, rumex acetosella, rumex angiocarpus, holcus lanatus, achillea millefolium, pinus sylvestris, pilosella aurantiaca, hypochaeris radicata, plantago lanceolata, hypericum perforatum, arrhenatherum elatius, veronica arvensis, trifolium dubium, viola wittrockiana, calluna vulgaris, quercus rubra, tanacetum vulgare, rumex acetosa, vicia hirsuta, lepidium didymum, trifolium arvense, festuca rubra, lolium perenne, echinochloa crus-galli, lathyrus latifolius, ornithopus perpusillus, luzula campestris, phytolacca acinosa, matricaria discoidea, betula pendula, trifolium repens, agrostis vinealis, vicia villosa, galinsoga quadriradiata, cytisus scoparius, anthoxanthum odoratum, erigeron sumatrensis, molinia caerulea, potentilla recta, ranunculus repens, jasione montana, setaria helvola, melilotus albus, avenella flexuosa