bromus arvensis, amaranthus retroflexus, bromus hordeaceus, bromus inermis, bromus tectorum, capsella bursa-pastoris, chenopodium album, cirsium arvense, convolvulus arvensis, crepis foetida, echinochloa crus-galli, erigeron canadensis, lathyrus tuberosus, lolium perenne, malva sylvestris, poa annua, senecio vernalis, senecio vulgaris, setaria pumila, solanum nigrum, sonchus arvensis, sonchus asper, thlaspi arvense, tripleurospermum inodorum, vicia cracca