text: chenopodium album, convolvulus arvensis, achillea millefolium, artemisia vulgaris, chenopodiastrum hybridum, cirsium arvense, echinochloa crus-galli, elymus repens, erigeron canadensis, galinsoga parviflora, lactuca serriola, lysimachia arvensis, mercurialis annua, papaver rhoeas, polygonum aviculare, senecio vulgaris, sonchus oleraceus, viola arvensis, aethusa cynapium, amaranthus retroflexus, dactylis glomerata, lamium purpureum, legousia speculum-veneris, myosotis arvensis, thlaspi arvense