be, arr. leuven, oxalis corniculata, pilosella aurantiaca, silene coronaria, claytonia perfoliata, phytolacca acinosa, lathyrus latifolius, galinsoga quadriradiata, lepidium didymum, potentilla indica, geranium pyrenaicum, veronica persica, viola wittrockiana, echinochloa crus-galli, ranunculus repens, erigeron sumatrensis, heracleum sphondylium, papaver somniferum, trifolium incarnatum, geranium macrorrhizum, phacelia tanacetifolia, arum italicum, lolium perenne, holcus lanatus, malva sylvestris, nicandra physalodes, poa trivialis, arrhenatherum elatius, glechoma hederacea, cymbalaria muralis, urtica dioica, melilotus albus, setaria helvola, matricaria discoidea, cirsium arvense, tanacetum vulgare, erigeron canadensis, symphytum officinale, prunus serotina, euphorbia lathyris, castanea sativa, plantago lanceolata, eschscholzia californica, silybum marianum, trifolium repens, datura stramonium, vicia villosa, centaurea cyanus, tanacetum parthenium, lunaria annua, cardamine pratensis