eleocharis uniglumis, argentina anserina, alopecurus geniculatus, juncus articulatus, persicaria maculosa, carex nigra, gnaphalium uliginosum, juncus bufonius, leptodictyum riparium, plantago major, plantago media, poa trivialis, rumex crispus, cerastium holosteoides, ranunculus flammula, rorippa palustris, trifolium repens