lolium multiflorum, medicago lupulina, bromus rigidus, echinochloa crus-galli, erigeron canadensis, festuca bromoides, poa trivialis, avena barbata, capsella bursa-pastoris, erigeron bonariensis, helminthotheca echioides, lactuca serriola, lysimachia arvensis, melilotus officinalis, papaver rhoeas, phragmites australis, ranunculus sardous, silene latifolia, sonchus oleraceus, trifolium campestre