eragrostis minor, lepidium ruderale, lotus corniculatus, plantago major, poa annua, achillea millefolium, argentina anserina, berteroa incana, calamagrostis epigejos, chaenorhinum minus, chenopodium album, cichorium intybus, cirsium arvense, digitaria sanguinalis, erigeron canadensis, matricaria discoidea, poa pratensis, senecio vulgaris, sisymbrium officinale, trifolium repens