argentina anserina, lolium perenne, rumex obtusifolius, plantago major, achillea millefolium, bellis perennis, capsella bursa-pastoris, cerastium holosteoides, chenopodium album, cirsium arvense, dactylis glomerata, galinsoga parviflora, poa annua, polygonum aviculare, ranunculus repens, trifolium repens, urtica dioica, urtica urens, veronica persica