anthemis cotula, lepidium ruderale, polygonum aviculare, arctium minus, artemisia absinthium, artemisia annua, atriplex tatarica, elymus repens, erigeron canadensis, hordeum murinum, inula britannica, lolium perenne, malva pusilla, medicago lupulina, plantago lanceolata, poa annua, potentilla reptans, prunella vulgaris, ranunculus repens, rorippa austriaca, tanacetum vulgare, trifolium repens, verbena officinalis, xanthium strumarium