convolvulus arvensis, echinochloa crus-galli, galinsoga parviflora, lipandra polysperma, amaranthus retroflexus, capsella bursa-pastoris, chenopodium album, cirsium arvense, lamium purpureum, persicaria maculosa, rorippa sylvestris, stellaria media, ambrosia artemisiifolia, cynodon dactylon, plantago major, poa annua, setaria pumila, stachys palustris