spergula arvensis, glyceria fluitans, persicaria maculosa, chenopodium album, erigeron canadensis, lolium multiflorum, persicaria lapathifolia, phacelia tanacetifolia, poa annua, rumex acetosa, gnaphalium uliginosum, ornithopus perpusillus, ranunculus repens, rorippa palustris, rumex acetosella, senecio vulgaris, viola arvensis