galinsoga parviflora, tripleurospermum inodorum, capsella bursa-pastoris, cirsium arvense, convolvulus arvensis, echinochloa crus-galli, erigeron canadensis, lamium amplexicaule, papaver rhoeas, rumex obtusifolius, sonchus asper, sonchus oleraceus, thlaspi arvense, artemisia vulgaris