gnaphalium uliginosum, alopecurus geniculatus, ranunculus repens, persicaria hydropiper, elymus repens, epilobium tetragonum, erigeron canadensis, glyceria fluitans, rorippa sylvestris, persicaria amphibia, persicaria maculosa, poa annua, poa trivialis, polygonum aviculare, ranunculus sceleratus, rumex crispus, sonchus asper, tripleurospermum maritimum