bidens tripartita, echinochloa crus-galli, setaria pumila, erigeron canadensis, silene latifolia, stachys palustris, stellaria media, achillea millefolium, cirsium arvense, digitaria sanguinalis, fallopia convolvulus, galinsoga parviflora, lipandra polysperma, mentha arvensis, oxalis stricta, persicaria hydropiper, persicaria maculosa, ranunculus repens, sonchus arvensis, trifolium repens, vicia tetrasperma, viola arvensis, campanula rapunculoides