convolvulus arvensis, cynodon dactylon, digitaria sanguinalis, echinochloa crus-galli, setaria pumila, amaranthus retroflexus, chenopodium album, eragrostis cilianensis, polygonum aviculare, portulaca oleracea, trifolium arvense, bidens tripartita, erigeron canadensis, hibiscus trionum, sinapis arvensis, sonchus asper