Ice plant : A plant (Mesembryanthemum crystallinum), sprinkled with pellucid, watery vesicles, which glisten like ice. It is native along the Mediterranean, in the Canaries, and in South Africa. Its juice is said to be demulcent and diuretic; its ashes are used in Spain in making glass.

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Taxonomy
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Defination from the web:
plant and grow ice plant (lampranthus). Ice plant is a succulent--meaning it has thick leaves that are watery inside--with daisy-like flowers...