persicaria maculosa, agrostis stolonifera, chenopodium album, cyperus eragrostis, dysphania ambrosioides, lythrum salicaria, xanthium orientale, alisma lanceolatum, bidens frondosa, corrigiola litoralis, lipandra polysperma, mentha aquatica, oxalis corniculata, paspalum dilatatum, poa annua, polycarpon tetraphyllum, polygonum aviculare, portulaca oleracea, sonchus asper, stellaria media