plantago major, echinochloa crus-galli, illecebrum verticillatum, persicaria mitis, plantago lanceolata, polygonum aviculare, scleranthus annuus, achillea millefolium, argentina anserina, gnaphalium uliginosum, juncus articulatus, poa annua, spergula arvensis, spergularia rubra, trifolium repens