Rhynchospora macrostachya, the tall horned beaksedge or tall beaksedge, is a plant in the sedge family, Cyperaceae. It is a perennial.
Conservation status in the United States It is listed as threatened in Connecticut"Connecticut's Endangered, Threatened and Special Concern Species 2015". State of Connecticut Department of Energy and Environmental Protection Bureau of Natural Resources. Retrieved 19 January 2018. (Note: This list is newer than the one used by plants.usda.gov and is more up-to-date.) and Rhode Island. It is listed as rare in Indiana, and as endangered in Kentucky and Maine.
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