Carex tereticaulis
Carex tereticaulis
Carex tereticaulis, or Basket Sedge (also known as Hollow Sedge), is a hardy, clump-forming perennial sedge in the family Cyperaceae, native to south-eastern Australia. It is commonly found in wetlands, along riverbanks, and in seasonally waterlogged areas, as well as in grasslands, scrub, and forests. Growing up to 1.2 meters tall, this large, erect tussock features fine, hollow, cylindrical flowering stems and green leaf blades that mature to dark yellow-brown sheathing blades, which wrap around the stems as they age. This unique combination of foliage and stem structure lends the plant an elegant and upright form, making it a striking addition to both natural and designed landscapes.
From September to November, Carex tereticaulis produces terminal clusters of small brown bracts at the ends of its long, hollow, green flowering stems. These flowers contribute texture and subtle seasonal interest, while the plant's dense form helps stabilize soils and prevent erosion. Its root system improves water quality by filtering runoff, making it an invaluable species for riparian and wetland ecosystems. Additionally, Hollow Sedge provides critical habitat and food for aquatic and semi-aquatic wildlife, supporting biodiversity in seasonally inundated environments.
The species holds cultural significance as well, having been used by First Nations people for basket making, which is reflected in its common name, Basket Sedge. Its historical use underscores its value beyond ecological benefits, highlighting its versatility and importance to cultural heritage.
Low-maintenance and highly adaptable, Carex tereticaulis thrives in wet soils, tolerates periodic inundation, and prefers full sun to partial shade. It is an excellent choice for wetland rehabilitation, rain gardens, and native garden plantings, offering both ecological benefits and aesthetic appeal in water-sensitive landscapes. With its bold form, cultural ties, and environmental contributions, Basket Sedge remains a standout species for biodiversity-focused and functional plantings.
