text: amaranthus retroflexus, cynodon dactylon, aristolochia clematitis, bromus inermis, bromus tectorum, chenopodium album, cirsium arvense, convolvulus arvensis, echinochloa crus-galli, elymus repens, erigeron canadensis, hibiscus trionum, lactuca serriola, lepidium draba, rumex crispus, setaria viridis, solanum nigrum, sonchus arvensis