*Ceratophyllum echinatum A. Gray in Ann. Lyceum Nat. Hist. New York 4(8-9): 49. 1847

*Ceratophyllum echinatum A. Gray in Ann. Lyceum Nat. Hist. New York 4(8-9): 49. 1847

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Synonymy

*Ceratophyllum echinatum A. Gray in Ann. Lyceum Nat. Hist. New York 4(8-9): 49. 1847