senecio viscosus, holcus lanatus, hypochaeris radicata, persicaria maculosa, spergula arvensis, tripleurospermum inodorum, artemisia vulgaris, plantago major, poa annua, rumex acetosella, sagina procumbens, senecio vernalis, tanacetum vulgare, cerastium holosteoides, erigeron canadensis, fallopia convolvulus