galinsoga parviflora, ornithopus perpusillus, senecio vulgaris, stellaria media, capsella bursa-pastoris, chenopodium album, cirsium arvense, echinochloa crus-galli, elymus repens, erigeron canadensis, gnaphalium uliginosum, myosotis arvensis, rorippa sylvestris, spergula arvensis, trifolium repens, artemisia vulgaris, erysimum cheiranthoides, matricaria discoidea, persicaria maculosa