digitaria ischaemum, digitaria sanguinalis, amaranthus powellii, bidens tripartita, sinapis arvensis, echinochloa crus-galli, equisetum arvense, erigeron canadensis, mentha arvensis, plantago lanceolata, achillea millefolium, alopecurus myosuroides, cirsium arvense, convolvulus arvensis, elymus repens, lathyrus pratensis, persicaria hydropiper, persicaria maculosa, prunella vulgaris, ranunculus arvensis, ranunculus repens, rumex obtusifolius, setaria pumila, symphytum officinale, trifolium repens, tussilago farfara, urtica dioica, veronica chamaedrys