artemisia verlotiorum, amaranthus powellii, amaranthus retroflexus, carex hirta, chenopodium album, convolvulus arvensis, echinochloa crus-galli, equisetum arvense, lipandra polysperma, persicaria lapathifolia, potentilla reptans, ranunculus repens, setaria pumila, setaria viridis, stachys palustris