poa annua, stellaria media, capsella bursa-pastoris, erodium cicutarium, matricaria chamomilla, polygonum aviculare, sclerochloa dura, cirsium arvense, convolvulus arvensis, crepis foetida, cynodon dactylon, daucus carota, erigeron canadensis, lactuca serriola, lamium amplexicaule, lolium perenne, malva sylvestris, tripleurospermum inodorum, veronica agrestis