leersia oryzoides, cyperus fuscus, gnaphalium uliginosum, mentha arvensis, persicaria lapathifolia, persicaria maculosa, rorippa amphibia, alisma plantago-aquatica, amaranthus blitum, bidens tripartita, carex elata, eleocharis acicularis, lythrum salicaria, plantago major, equisetum fluviatile, phragmites australis, riccia fluitans