capsella bursa-pastoris, sisymbrium officinale, chenopodium album, persicaria maculosa, galinsoga quadriradiata, persicaria lapathifolia, senecio vulgaris, aethusa cynapium, artemisia vulgaris, lactuca serriola, lipandra polysperma, poa annua, tripleurospermum inodorum, tussilago farfara, erigeron canadensis, matricaria discoidea, plantago major, tanacetum vulgare