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Synonyms for Glasswort (same or very similar meaning)

WordNet sense 1 (bushy plant of Old World salt marshes and sea beaches having prickly leaves; burned to produce a crude soda ash):
barilla, kali, kelpwort, saltwort, Salsola kali, Salsola soda

WordNet sense 2 (fleshy maritime plant having fleshy stems with rudimentary scalelike leaves and small spikes of minute flowers; formerly used in making glass):
samphire, Salicornia europaea

From the ODE community, based on WordNetadd/edit