be, arr. mechelen, bidens frondosa, potentilla indica, crassula helmsii, galinsoga quadriradiata, quercus rubra, prunus serotina, silene coronaria, juncus tenuis, lepidium didymum, amelanchier lamarckii, lathyrus latifolius, melilotus albus, pilosella aurantiaca, echinochloa crus-galli, rhododendron ponticum, castanea sativa, erigeron sumatrensis, oxalis stricta, oxalis corniculata, epilobium ciliatum, symphoricarpos albus, geranium pyrenaicum, reynoutria japonica, nymphaea marliacea, setaria helvola, galanthus nivalis, lolium multiflorum, robinia pseudoacacia, lepidium virginicum, veronica persica, erigeron canadensis, vicia villosa, potentilla recta, impatiens glandulifera, geum macrophyllum, cornus sericea, claytonia perfoliata, arum italicum, alnus incana, cyperus eragrostis, solidago gigantea, myriophyllum aquaticum, heracleum mantegazzianum, brassica rapa, phytolacca acinosa, urtica dioica, pentaglottis sempervirens, oenothera glazioviana, matricaria discoidea, symphytum officinale