glass·wort (glăswûrt′, -wôrt′)
Any of various edible plants of the genus Salicornia, growing in salt marshes and having fleshy stems and rudimentary, scalelike leaves. The leaves and stems are crisp and salty and are often pickled or used in salads. Also called samphire.
[So called because it was formerly burned and its ashes used as a source of alkali for making glass.]
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