water arum
- an aquatic arum plant, Calla palustris, of the North Temperate Zone, having heart-shaped leaves, tiny green flowers, and red berries.
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Origin of water arum
An Americanism dating back to 1810–20
Also called wild calla.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018