text: sonchus arvensis, elymus repens, erigeron canadensis, lamium purpureum, galinsoga parviflora, lolium perenne, arrhenatherum elatius, bidens frondosa, chenopodium album, daucus carota, oenothera biennis, plantago lanceolata, polygonum aviculare, saponaria officinalis, argentina anserina, artemisia vulgaris, berteroa incana, lolium pratense, trifolium pratense