text: triticum aestivum, lysimachia arvensis, lysimachia foemina, medicago lupulina, reseda lutea, stachys annua, ajuga chamaepitys, amaranthus powellii, amaranthus retroflexus, capsella bursa-pastoris, chaenorhinum minus, chenopodiastrum hybridum, cirsium arvense, clematis vitalba, convolvulus arvensis, erigeron annuus, erigeron canadensis, lamium amplexicaule, mercurialis annua, panicum miliaceum, solanum nigrum, stellaria media, veronica polita, viola arvensis, brassica napus