argentina anserina, ranunculus repens, plantago major, bidens tripartita, juncus bufonius, mentha arvensis, poa compressa, bidens frondosa, echinochloa crus-galli, elymus repens, juncus articulatus, persicaria lapathifolia, poa palustris, polygonum aviculare, potentilla reptans, rumex crispus, stachys palustris, tripleurospermum inodorum, veronica anagallis-aquatica, alopecurus aequalis, medicago lupulina