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(Cyperus exaltatus)
Tall Flat-Sedge (Cyperus exaltatus)
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Harry Rose
CC BY 2.0
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Harry Rose
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CC BY 2.0
Copyright Notice:
Photo by: Harry Rose | License Type: CC BY 2.0 | License URL: https://creativecommons.org/licenses/by/2.0/ | Uploader: Macleay Grass Man | Publisher: Flickr
Estimated Native Range
Summary
Cyperus exaltatus, commonly known as Tall Flat-Sedge, is an evergreen perennial herb, though sometimes behaving as an annual, native to wetlands, marshes, and along the edges of ponds and streams in Southeast Asia, East Asia, Central Africa, and Australia. It typically grows to a height of 0.5-2 feet (0.15-0.6 meters) and a width of about 1 foot (0.3 meters). This sedge forms dense clumps of triangular stems topped with umbrella-like clusters of narrow leaves and small, greenish-brown flowers that may not be particularly showy but are interesting in structure.
Tall Flat-Sedge is valued for its ability to thrive in wet conditions, making it suitable for water gardens, rain gardens, and as a naturalizing plant in damp areas of the landscape. It can also be used to stabilize soil in erosion-prone areas. In cultivation, it requires full sun to part shade and prefers high amounts of water, often growing well in soils that are poorly drained or even submerged. While it is not known for significant pest or disease issues, it can become invasive in some regions outside its native range, so care should be taken to manage its spread.CC BY-SA 4.0
Tall Flat-Sedge is valued for its ability to thrive in wet conditions, making it suitable for water gardens, rain gardens, and as a naturalizing plant in damp areas of the landscape. It can also be used to stabilize soil in erosion-prone areas. In cultivation, it requires full sun to part shade and prefers high amounts of water, often growing well in soils that are poorly drained or even submerged. While it is not known for significant pest or disease issues, it can become invasive in some regions outside its native range, so care should be taken to manage its spread.CC BY-SA 4.0
Plant Description
- Plant Type: Grass
- Height: 0.5-2 feet
- Width: 0.25-1 feet
- Growth Rate: Moderate
- Flower Color: N/A
- Flowering Season: Summer
- Leaf Retention: Evergreen
Growth Requirements
- Sun: Full Sun
- Water: High
- Drainage: Slow, Standing
Common Uses
Deer Resistant, Low Maintenance
Natural Habitat
Wetlands, marshes, and along the edges of ponds and streams
Other Names
Common Names: Giant Sedge, Fragrant Flatsedge, 無翅莎草;高稈莎草
Scientific Names: , Cyperus exaltatus, Cyperus exaltatus subsp. megalanthus, Cyperus exaltatus subsp. digynus, Cyperus exaltatus subsp. divergens, Cyperus exaltatus subsp. dives, Cyperus exaltatus subsp. hainanensis, Cyperus exaltatus subsp. minor, Cyperus exaltatus subsp. oatesii, Cyperus exaltatus subsp. serpens
GBIF Accepted Name: Cyperus exaltatus Retz.