be, arr. leuven, pilosella aurantiaca, oxalis corniculata, silene coronaria, lathyrus latifolius, geranium pyrenaicum, galinsoga quadriradiata, lolium multiflorum, echinochloa crus-galli, veronica persica, potentilla indica, erigeron sumatrensis, holcus lanatus, erigeron canadensis, prunus serotina, melilotus albus, viola wittrockiana, cerastium fontanum, claytonia perfoliata, vicia villosa, lepidium didymum, juncus tenuis, ranunculus repens, setaria helvola, arrhenatherum elatius, oxalis stricta, lolium perenne, plantago lanceolata, agrostis capillaris, quercus rubra, phytolacca acinosa, trifolium dubium, rumex acetosa, trifolium hybridum, achillea millefolium, heracleum sphondylium, matricaria discoidea, stellaria graminea, tanacetum vulgare, leucanthemum vulgare, quercus robur, lepidium virginicum, castanea sativa, hypericum perforatum, vicia hirsuta, cirsium arvense, trifolium repens, hypochaeris radicata, veronica arvensis, epilobium ciliatum, medicago sativa