Wool Grass (Scirpus cyperinus) Scirpus cyperinus

Scirpus cyperinus, commonly known as Woolgrass or Common Bulrush, is a native North American sedge that is well-adapted to wetland habitats. This robust, clump-forming perennial features dense clusters of triangular, green stems that can reach heights of 4-6 feet. In late summer, the stems are topped with distinctive, woolly flower clusters that mature into brown, nut-like fruits. Scirpus cyperinus is an important component of freshwater marshes, stream banks, and other shallow water ecosystems, where its fibrous root system helps to stabilize soil and provide valuable cover and nesting habitat for wetland wildlife. Adaptable to a wide range of soil and water conditions, from consistently moist to seasonally flooded, Woolgrass is a low-maintenance and resilient choice for rain gardens, bioswales, and natural aquatic plantings. Its ability to spread vigorously and tolerate fluctuating water levels makes it an excellent choice for establishing self-sustaining wetland communities that support local biodiversity.

• Illinois Wildflowers
• Lady Bird Johnson Wildflower Center
• Missouri Botanical Garden
• USDA
• Wikipedia

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