chenopodium album, erigeron canadensis, lolium perenne, apera spica-venti, cirsium arvense, poa annua, tripleurospermum inodorum, capsella bursa-pastoris, descurainia sophia, elymus repens, equisetum arvense, papaver dubium, persicaria lapathifolia, rumex acetosella, spergula arvensis, stellaria media, viola arvensis, achillea millefolium, artemisia vulgaris, cerastium holosteoides, festuca trachyphylla, plantago major, rorippa palustris, senecio vulgaris