echinochloa crus-galli, plantago uliginosa, alopecurus aequalis, bidens frondosa, cirsium arvense, rorippa palustris, rumex maritimus, eleocharis acicularis, eleocharis palustris, gnaphalium uliginosum, lipandra polysperma, mentha pulegium, oenanthe aquatica, potentilla reptans, ranunculus repens, tripleurospermum inodorum, alisma lanceolatum, capsella bursa-pastoris, carex acuta, limosella aquatica, trifolium repens