text: amaranthus retroflexus, convolvulus arvensis, stellaria media, setaria viridis, solanum nigrum, capsella bursa-pastoris, chenopodiastrum hybridum, euphorbia helioscopia, heliotropium europaeum, lamium amplexicaule, medicago lupulina, senecio vulgaris, sonchus oleraceus, urtica urens, veronica polita