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pickerelweed

noun

☆ any of a genus (Pontederia) of North American aquatic plants of the pickerelweed family, esp. a species (P. cordata) with arrow-shaped leaves and spikes of blue-violet flowers, found in shallow waters

adjective

designating a family (Pontederiaceae, order Liliales) of monocotyledonous, freshwater plants, including the water hyacinth

See pickerelweed in American Heritage Dictionary 4

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