echinochloa crus-galli, galeopsis bifida, galinsoga parviflora, stellaria media, veronica arvensis, capsella bursa-pastoris, matricaria discoidea, silene latifolia, apera spica-venti, chenopodium album, fallopia convolvulus, gnaphalium uliginosum, persicaria maculosa, plantago major, poa annua, polygonum aviculare, rorippa palustris, sonchus arvensis, spergula arvensis, lycopsis arvensis, thlaspi arvense