symphyotrichum ciliatum, lotus tenuis, amaranthus albus, amaranthus blitoides, ambrosia artemisiifolia, artemisia annua, atriplex prostrata, bidens cernuus, bromus arvensis, cirsium arvense, daucus carota, echinochloa crus-galli, erigeron canadensis, inula britannica, lepidium virginicum, lolium perenne, plantago lanceolata, plantago major, poa annua, polygonum aviculare, pulicaria vulgaris, setaria pumila, sonchus arvensis, trifolium repens, tripleurospermum inodorum, xanthium strumarium