from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A freshwater plant (Pontederia cordata) of eastern North America, having heart-shaped leaves with long petioles and spikes of violet-blue flowers.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of several freshwater plants, of the genus Pontederia, that have heart-shaped leaves

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. American plant having spikes of blue flowers and growing in shallow water of streams and ponds


from Wiktionary, Creative Commons Attribution/Share-Alike License

pickerel +‎ weed



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  • "The fresh green of arrowhead and pickerelweed rimmed the banks, some plants dragged out of the soil by the rising water and whirled downstream, more hanging on by their roots for dear life, leaves trailing in the racing wash."

    —Diana Gabaldon, An Echo in the Bone (New York: Delacorte Press, 2009), 85

    December 17, 2009