be, arr. leuven, geranium pyrenaicum, lathyrus latifolius, veronica persica, lepidium didymum, galinsoga quadriradiata, erigeron sumatrensis, echinochloa crus-galli, pilosella aurantiaca, oxalis corniculata, melilotus albus, lolium multiflorum, silene coronaria, vicia villosa, matricaria discoidea, heracleum sphondylium, bidens frondosa, setaria helvola, arrhenatherum elatius, erigeron canadensis, brassica rapa, potentilla indica, claytonia perfoliata, ranunculus repens, symphytum officinale, urtica dioica, medicago sativa, malva sylvestris, lolium perenne, lepidium virginicum, arum italicum, holcus lanatus, cirsium arvense, phytolacca acinosa, tanacetum vulgare, galanthus nivalis, silybum marianum, poa trivialis, cyperus eragrostis, glechoma hederacea, papaver somniferum, prunus serotina, trifolium incarnatum, trifolium hybridum, cymbalaria muralis, potentilla recta, phacelia tanacetifolia, hirschfeldia incana, plantago lanceolata, rapistrum rugosum, viola wittrockiana