cirsium arvense, populus canadensis, agrostis capillaris, chenopodium album, phragmites australis, ranunculus repens, alopecurus geniculatus, galeopsis tetrahit, glyceria maxima, holcus lanatus, phalaris arundinacea, poa trivialis, stachys palustris, elymus repens, persicaria amphibia, rumex obtusifolius, stellaria aquatica, artemisia vulgaris