helosciadium nodiflorum, cyperus eragrostis, persicaria maculosa, bidens frondosa, paspalum vaginatum, datura stramonium, mentha suaveolens, persicaria hydropiper, polypogon monspeliensis, salix purpurea, sonchus oleraceus, stellaria aquatica, symphyotrichum squamatum, veronica anagallis-aquatica, xanthium orientale