matricaria discoidea, poa annua, lolium perenne, persicaria maculosa, achillea millefolium, amaranthus retroflexus, anthemis arvensis, argentina anserina, artemisia absinthium, artemisia vulgaris, erigeron canadensis, linaria vulgaris, malva neglecta, oxybasis rubra, plantago major, rumex crispus, urtica dioica