panicum capillare, eragrostis minor, amaranthus blitoides, amaranthus crispus, amaranthus hybridus, amaranthus retroflexus, atriplex patula, atriplex tatarica, chenopodiastrum hybridum, digitaria sanguinalis, echinochloa crus-galli, erigeron canadensis, fallopia convolvulus, polygonum aviculare, setaria pumila, setaria verticillata