be, arr. leuven, veronica persica, phacelia tanacetifolia, trifolium incarnatum, echinochloa crus-galli, hordeum vulgare, setaria helvola, triticum aestivum, sinapis alba, pilosella aurantiaca, cerastium glomeratum, ranunculus repens, fagopyrum esculentum, zea mays, linum usitatissimum, matricaria discoidea, lolium multiflorum, heracleum sphondylium, matricaria chamomilla, lolium perenne, gnaphalium uliginosum, centaurea cyanus, galinsoga quadriradiata, geranium pyrenaicum, cirsium arvense, silybum marianum, papaver somniferum, raphanus raphanistrum, avena sativa, cerastium fontanum, lathyrus latifolius, vicia hirsuta, polygonum aviculare, medicago sativa, holcus lanatus, poa trivialis, plantago lanceolata, brassica napus, datura stramonium, beta vulgaris, trifolium repens, chenopodium album, rumex acetosa, ranunculus acris, panicum miliaceum, vicia faba, lepidium didymum, symphytum officinale, malva sylvestris, achillea millefolium, veronica arvensis