polygonum aviculare, artemisia vulgaris, chenopodium album, galinsoga parviflora, plantago major, sonchus asper, acer negundo, capsella bursa-pastoris, crepis tectorum, erigeron canadensis, lappula squarrosa, malva pusilla, matricaria discoidea, melilotus albus, persicaria amphibia, poa annua, tripleurospermum inodorum, tussilago farfara