Glasswort species (Salicornia spp) colonise intertidal mud and sandflats to form a pioneer saltmarsh habitat that facilitates the development of more stable habitat components. The main Salicornia zone develops in the lower saltmarsh and is frequently inundated by the tide, though the species can also colonise the sides of creeks sides and disturbed areas and pool margins in upper saltmarshes. Annual seablite (Suaeda maritima) is a common associate in these situations.