be, arr. leuven, pilosella aurantiaca, oxalis corniculata, silene coronaria, lathyrus latifolius, viola wittrockiana, phytolacca acinosa, galinsoga quadriradiata, geranium pyrenaicum, potentilla indica, heracleum sphondylium, lepidium didymum, ranunculus repens, claytonia perfoliata, veronica persica, holcus lanatus, echinochloa crus-galli, arrhenatherum elatius, erigeron sumatrensis, lolium perenne, matricaria discoidea, lolium multiflorum, melilotus albus, plantago lanceolata, cymbalaria muralis, rumex acetosa, setaria helvola, cerastium fontanum, ranunculus acris, geranium macrorrhizum, poa trivialis, erigeron canadensis, papaver somniferum, trifolium repens, alopecurus pratensis, cardamine pratensis, vicia villosa, trifolium dubium, bidens frondosa, cirsium arvense, trifolium incarnatum, symphytum officinale, trifolium pratense, urtica dioica, achillea millefolium, lepidium virginicum, tanacetum vulgare, glechoma hederacea, leucanthemum vulgare, arum italicum, oxalis stricta