chenopodium album, elymus repens, fallopia convolvulus, apera spica-venti, artemisia vulgaris, erigeron canadensis, galeopsis bifida, poa trivialis, silene latifolia, stachys palustris, stellaria media, tripleurospermum inodorum, cirsium arvense, echinochloa crus-galli, erigeron acris, galeopsis tetrahit, galinsoga parviflora, hypericum perforatum, polygonum aviculare, rumex crispus, sonchus arvensis, sonchus oleraceus, veronica arvensis, vicia hirsuta