This is a species of flowering plant native to North America, commonly found in wetlands, including marshes, lakeshores, and riverbanks.

The plant can grow tall, typically around 3 to 6 feet, and has long, narrow, triangular stems. It produces small, brownish flowers that are grouped in spikelets. It thrives in moist to wet soils and is often used in ecological restoration projects to help stabilize wetland habitats.

It is also known for its role in providing important habitat for wildlife, especially birds and insects. This plant is listed as a threatened species in some regions, particularly in the northeastern United States.

(Image sourced from fs.usda.gov)