poa annua, tripleurospermum inodorum, alopecurus aequalis, chenopodium ficifolium, epilobium ciliatum, persicaria hydropiper, ranunculus repens, trifolium repens, bidens frondosa, chenopodium album, fallopia convolvulus, galeopsis tetrahit, matricaria chamomilla, rorippa palustris, thlaspi arvense, urtica dioica, veronica anagallis-aquatica, centaurea cyanus, oenanthe aquatica