convolvulus arvensis, solanum nigrum, portulaca oleracea, amaranthus deflexus, amaranthus retroflexus, capsella bursa-pastoris, chenopodium album, elymus repens, senecio vulgaris, sonchus oleraceus, hordeum murinum, hyoscyamus niger, lamium amplexicaule, polygonum aviculare, setaria viridis, silene latifolia, stellaria media