text: echinochloa crus-galli, setaria pumila, amaranthus retroflexus, chenopodium album, aegilops cylindrica, aristolochia clematitis, bromus tectorum, cirsium arvense, convolvulus arvensis, digitaria sanguinalis, erigeron canadensis, hibiscus trionum, lactuca serriola, lathyrus tuberosus, reseda lutea, setaria viridis, solanum nigrum, sonchus arvensis, thlaspi arvense, tripleurospermum inodorum