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Hardy perennial plant (Armoracia lapathifolia) of the mustard family, native to Mediterranean lands and grown throughout the temperate zones. Its hotly pungent, fleshy root is used as a condiment and is traditionally considered medicinal. In many cool, moist areas it has become a troublesome weed. The plant bears small white flowers, small oblong pods, and large, coarse, glossy-green basal leaves arising on long stems from the crown atop the large white root.
This entry comes from Encyclopædia Britannica Concise. For the full entry on horseradish, visit Britannica.com.