xanthium strumarium, bidens tripartita, echinochloa crus-galli, lythrum virgatum, persicaria minor, phalaris arundinacea, sonchus arvensis, alisma plantago-aquatica, althaea officinalis, atriplex prostrata, inula britannica, lipandra polysperma, persicaria hydropiper, polygonum arenarium, rubia tatarica, sparganium erectum, stachys palustris