epilobium tetragonum, glyceria notata, alopecurus geniculatus, apera spica-venti, persicaria hydropiper, holcus lanatus, agrostis stolonifera, bidens frondosa, erigeron canadensis, rumex conglomeratus, veronica anagallis-aquatica, veronica beccabunga, xanthium strumarium, matricaria chamomilla, lythrum salicaria, ranunculus repens