portulaca oleracea, setaria verticillata, tribulus terrestris, amaranthus deflexus, amaranthus retroflexus, chenopodium album, cynodon dactylon, digitaria sanguinalis, eragrostis cilianensis, erigeron bonariensis, heliotropium europaeum, polycarpon tetraphyllum, polygonum aviculare, senecio vulgaris, solanum nigrum, sonchus oleraceus