sisymbrium officinale, artemisia vulgaris, tussilago farfara, poa annua, elymus repens, matricaria discoidea, poa trivialis, tripleurospermum inodorum, alliaria petiolata, atriplex patula, capsella bursa-pastoris, persicaria lapathifolia, robinia pseudoacacia, sonchus oleraceus, avena sativa, chelidonium majus, chenopodium album, galinsoga quadriradiata, impatiens parviflora, lactuca serriola, lapsana communis, melilotus albus, phleum pratense, poa pratensis, ranunculus repens, sambucus nigra, trifolium pratense, trifolium repens, bidens frondosa, cirsium vulgare, erigeron canadensis