eleocharis acicularis, plantago uliginosa, leersia oryzoides, trifolium hybridum, juncus bufonius, poa annua, sagina procumbens, bryum argenteum, echinochloa crus-galli, elymus repens, persicaria hydropiper, polygonum aviculare, rorippa palustris, trifolium repens, veronica anagallis-aquatica, lythrum portula, rumex obtusifolius