erigeron sumatrensis, medicago sativa, symphyotrichum squamatum, beta vulgaris, bromus catharticus, chenopodium album, cynodon dactylon, diplotaxis erucoides, rumex crispus, setaria verticillata, silybum marianum, erigeron bonariensis, galium aparine, lobularia maritima, piptatherum miliaceum, sonchus aquatilis