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turtlehead

[tur-tl-hed]

noun

any of several North American plants belonging to the genus Chelone, of the figwort family, having opposite, serrated leaves and spikes of purple or white, two-lipped flowers.

Origin of turtlehead

1855–60, Americanism; turtle1 + head, so called from the appearance of its flower
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019