galinsoga parviflora, echinochloa crus-galli, lamium purpureum, persicaria amphibia, stachys palustris, stellaria media, argentina anserina, calystegia sepium, capsella bursa-pastoris, chenopodium album, elymus repens, equisetum arvense, gnaphalium uliginosum, lipandra polysperma, poa annua, ranunculus repens, sonchus asper, symphytum officinale