be, arr. leuven, bidens frondosa, echinochloa crus-galli, lolium multiflorum, galinsoga quadriradiata, ludwigia grandiflora, crassula helmsii, angelica archangelica, epilobium ciliatum, lythrum salicaria, lycopus europaeus, symphytum officinale, urtica dioica, lepidium didymum, persicaria hydropiper, ranunculus repens, melilotus albus, geranium pyrenaicum, lathyrus latifolius, setaria helvola, lysimachia vulgaris, veronica persica, silene coronaria, pilosella aurantiaca, iris pseudacorus, filipendula ulmaria, cardamine pratensis, impatiens glandulifera, phalaris arundinacea, potentilla indica, matricaria discoidea, juncus tenuis, oxalis corniculata, cirsium arvense, cyperus eragrostis, nymphaea marliacea, trifolium hybridum, brassica rapa, erigeron canadensis, erigeron sumatrensis, heracleum sphondylium, phragmites australis, myriophyllum aquaticum, vicia villosa, oxalis stricta, galium palustre, juncus effusus, lepidium virginicum, calystegia sepium, poa trivialis, stachys palustris