polygonum aviculare, poa annua, convolvulus arvensis, erigeron canadensis, hordeum murinum, lolium perenne, malva neglecta, matricaria chamomilla, matricaria discoidea, plantago major, rorippa sylvestris, rumex crispus, sclerochloa dura, sonchus asper, sonchus oleraceus, trifolium repens, tripleurospermum inodorum