stellaria media, galinsoga parviflora, lipandra polysperma, lamium purpureum, argentina anserina, bidens tripartita, capsella bursa-pastoris, chenopodium album, echinochloa crus-galli, equisetum arvense, euphorbia helioscopia, gnaphalium uliginosum, lythrum salicaria, persicaria maculosa, plantago major, poa annua, ranunculus repens, rorippa islandica, sonchus asper, stachys palustris, veronica agrestis