echinochloa crus-galli, bidens frondosa, cyperus esculentus, persicaria lapathifolia, persicaria maculosa, xanthium orientale, calystegia sepium, artemisia vulgaris, dysphania ambrosioides, lythrum salicaria, panicum capillare, paspalum distichum, rorippa sylvestris, stachys palustris