Also present in many estuaries is saltmarsh ribbonwood or makamaka (Plagianthus divaricatus).
Turf-forming plants occur where the land is drier and salt meadows often develop. The succulent glasswort (Sarcocornia quinqueflora subsp. quinqueflora) can be found in association with mats of the herb remuremu (Selliera radicans) and shore primrose or mākoako (Samolus repens).
Exotic species that occur in estuaries include cordgrass (Spartina x townsendii) which was introduced from England and planted at the Manawatū river mouth in 1913, Spartina anglica and Spartina alternatiflora (American spartina).