amaranthus powellii, capsella bursa-pastoris, amaranthus retroflexus, elymus repens, aristolochia clematitis, chenopodium album, cirsium arvense, crepis foetida, echinochloa crus-galli, erigeron canadensis, lathyrus tuberosus, lepidium draba, polygonum aviculare, portulaca oleracea, rumex obtusifolius, setaria viridis, solanum nigrum, sonchus arvensis, sonchus oleraceus, stellaria media