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arrow arum

noun
  1. a North American plant, Peltandra virginica, of wet areas, having large, arrow-shaped leaves and inconspicuous flowers enclosed in a narrow, pointed spathe.
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Origin of arrow arum

An Americanism dating back to 1855–60
Also called tuckahoe.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018