Dr. Alfred E. Schuyler first identified the Northeastern Bulrush in 1962. It is also known as the Barbed-bristle Bulrush and Northern Bulrush. Its range includes Vermont, Massachusetts, New York, Pennsylvania, Maryland, Virginia, and West Virginia. Precise population numbers are unknown, but approximately 50-60 sites are on record. This species is endangered and even slight variations in the natural balance of the water table and its unusual wetland habitat can destroy this plant. Historic sites in eastern Pennsylvania were destroyed, for instance, by agricultural activity, development, and quarrying.

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