echinochloa crus-galli, setaria pumila, cirsium arvense, persicaria maculosa, senecio vulgaris, amaranthus retroflexus, capsella bursa-pastoris, chenopodium album, convolvulus arvensis, equisetum arvense, erigeron canadensis, galinsoga parviflora, lamium maculatum, lysimachia arvensis, poa annua, stellaria media