phalaris arundinacea, lythrum salicaria, alisma gramineum, alisma plantago-aquatica, atriplex prostrata, bidens tripartita, butomus umbellatus, carex acuta, echinochloa crus-galli, inula britannica, mentha arvensis, oenanthe aquatica, persicaria amphibia, persicaria hydropiper, phragmites australis, sonchus arvensis, typha angustifolia