be, arr. sint-niklaas, bidens frondosa, claytonia perfoliata, crassula helmsii, prunus serotina, silene coronaria, amelanchier lamarckii, lepidium didymum, galinsoga quadriradiata, quercus rubra, potentilla indica, echinochloa crus-galli, juncus tenuis, pilosella aurantiaca, lathyrus latifolius, nymphaea marliacea, rhododendron ponticum, erigeron sumatrensis, setaria helvola, geum macrophyllum, melilotus albus, potentilla recta, lepidium virginicum, oxalis corniculata, phytolacca acinosa, myriophyllum aquaticum, pentaglottis sempervirens, oenothera deflexa, ludwigia grandiflora, oxalis stricta, castanea sativa, oenothera glazioviana, matricaria discoidea, claytonia sibirica, lunaria annua, erigeron canadensis, vicia villosa, viola wittrockiana, reynoutria japonica, epilobium ciliatum, lolium multiflorum, lemna minuta, cyperus eragrostis, veronica persica, galinsoga parviflora, galanthus nivalis, geranium pyrenaicum, datura stramonium, nicandra physalodes, quercus palustris, verbena bonariensis