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Floating Club-rush

Isolepis fluitans

Please keep in mind that it is illegal to uproot a plant without the landowner's consent and care should be taken at all times not to damage wild plants. Wild plants should never be picked for pleasure and some plants are protected by law.
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Plant Profile

Flowering Months:
Cyperaceae (Sedge)
Also in this family:
American Galingale, Birdsfoot Sedge, Black Alpine Sedge, Black Bog-rush, Bladder Sedge, Bog Sedge, Bottle Sedge, Bristle Club-rush, Bristle Sedge, Broad-leaved Cotton-grass, Brown Beak-sedge, Brown Bog-rush, Chestnut Rush, Close-headed Alpine Sedge, Club Sedge, Common Club-rush, Common Cotton-grass, Common Sedge, Common Spike-rush, Curved Sedge, Deergrass, Dioecious Sedge, Distant Sedge, Divided Sedge, Dotted Sedge, Downy-fruited Sedge, Dwarf Sedge, Dwarf Spike-rush, Estuarine Sedge, False Fox Sedge, False Sedge, Few-flowered Sedge, Few-flowered Spike-rush, Fibrous Tussock Sedge, Fingered Sedge, Flat Sedge, Flea Sedge, Gingerbread Sedge, Glaucous Sedge, Great Fen Sedge, Greater Pond Sedge, Greater Tussock Sedge, Green-ribbed Sedge, Grey Club-rush, Grey Sedge, Hair Sedge, Hairy Sedge, Haresfoot Sedge, Hare's-tail Cotton-grass, Heath Sedge, Hop Sedge, Large Yellow Sedge, Lesser Pond Sedge, Lesser Tussock Sedge, Long-bracted Sedge, Many-stalked Spike-rush, Mountain Bog Sedge, Needle Spike-rush, Northern Deergrass, Northern Spike-rush, Oval Sedge, Pale Sedge, Pendulous Sedge, Perennial Sedge, Pill Sedge, Prickly Sedge, Remote Sedge, Rock Sedge, Round-headed Club-rush, Russet Sedge, Salt Sedge, Sand Sedge, Scorched Alpine Sedge, Sea Club-rush, Sheathed Sedge, Slender Club-rush, Slender Cotton-grass, Slender Sedge, Slender Spike-rush, Slender Tufted Sedge, Smooth-stalked Sedge, Soft-leaved Sedge, Spiked Sedge, Spring Sedge, Star Sedge, Starved Wood Sedge, Stiff Sedge, String Sedge, Sweet Galingale, Tall Bog Sedge, Tawny Sedge, Thin-spiked Wood Sedge, Triangular Club-rush, True Fox Sedge, Tufted Sedge, Water Sedge, White Beak-sedge, White Sedge, Wood Club-rush, Wood Sedge, Yellow Sedge
Life Cycle:
Annual or Perennial
Maximum Size:
50 centimetres tall
Ditches, gardens, heathland, mud, ponds, water, waterside, wetland.

Green, no petals
The flowers are aerial and are held in a single, long-stalked spikelet. No sepals.
Brown, globular nut.
The flat leaves are slender and submerged. They appear in tufts up the stem. Grows in still or slow flowing water.
Other Names:
Water-fern Clubrush.
Frequency (UK):
Occasionally seen  

Other Information


Isolepis fluitans, also known as floating clubrush or water-fern clubrush, is a species of plant in the family Cyperaceae. It is native to wetlands and marshes in Europe, Asia, and North America. Floating clubrush is a small, herbaceous plant that grows in a tufted or clumped habit. It has thin, wiry stems and small, grass-like leaves. It produces small, brown or greenish-brown flowers that are surrounded by papery bracts. The plant is adapted to growing in standing water and has a floating habit, which gives it its common name. It is commonly found in wetland habitats and is used in horticulture as an ornamental plant.


Floating Club-rush (Isolepis fluitans) is a species of aquatic plant native to many parts of the world, including Europe, Asia, Australia, and North America. This plant is characterized by its long, slender leaves and delicate, grass-like appearance.

Floating Club-rush is an excellent choice for aquariums, ponds, and other aquatic environments. It is able to grow in a wide range of water conditions and is easy to care for. This plant can be found in many different shades of green, ranging from a light, fresh green to a dark, forest green.

One of the key benefits of Floating Club-rush is its ability to provide a natural source of shade and cover for fish and other aquatic creatures. This makes it a popular choice for aquarium hobbyists and pond owners alike. The plant also helps to regulate water temperature and quality, making it an important component of a healthy aquatic ecosystem.

Another benefit of Floating Club-rush is its ability to absorb nutrients from the water, helping to reduce the buildup of harmful chemicals and pollutants. This can be especially important for pond owners, as it helps to keep the water clean and clear. The plant also provides a natural source of food for some aquatic species, such as snails and tadpoles.

Floating Club-rush is a versatile and hardy plant that can thrive in a variety of conditions. It can be grown in shallow water or in deeper water up to three feet deep. It is also able to tolerate a wide range of temperatures, making it suitable for use in a variety of climates.

Floating Club-rush is a versatile and attractive aquatic plant that provides a range of benefits for aquariums, ponds, and other aquatic environments. Whether you're an aquarium hobbyist or pond owner, this plant is a must-have for a healthy and thriving aquatic ecosystem.

In addition to its practical benefits, Floating Club-rush is also a beautiful and eye-catching plant. Its delicate, grass-like appearance adds a natural, organic touch to any aquatic environment. The plant can also be used to create an attractive focal point or to form a lush, green backdrop for other aquatic plants.

Floating Club-rush is easy to care for, making it a great choice for those who are new to aquatic gardening. The plant does not require any special care or attention and is able to grow in a wide range of water conditions. However, it is important to make sure that the water is kept clean and free of pollutants, as this can affect the health of the plant.

The plant is also relatively low maintenance and does not require any special equipment or fertilizers. It can be propagated by dividing the root system or by planting seeds. Once established, Floating Club-rush is a hardy and resilient plant that is able to thrive with minimal care.

Floating Club-rush is an excellent choice for those looking to add a natural and beautiful touch to their aquarium, pond, or other aquatic environment. With its attractive appearance, practical benefits, and ease of care, this plant is a must-have for any aquatic garden. Whether you are a seasoned aquatic gardener or a beginner, Floating Club-rush is a plant that will bring joy and beauty to your aquatic environment for years to come.

Floating Club-rush is also an important plant in terms of biodiversity. It provides important habitats and food sources for a variety of aquatic species, including insects, fish, and amphibians. This makes it an important component of healthy aquatic ecosystems and a valuable addition to any natural pond or water feature.

In addition to its role in supporting aquatic biodiversity, Floating Club-rush is also an important plant in traditional medicine. In some cultures, it is used to treat a variety of conditions, including digestive problems, skin conditions, and respiratory issues. It is also believed to have anti-inflammatory and analgesic properties.

Another interesting aspect of Floating Club-rush is its ability to absorb and filter pollutants from the water. This makes it an important tool for managing water quality in aquatic environments, including ponds, lakes, and rivers. The plant can help to remove excess nutrients, chemicals, and pollutants from the water, helping to keep it clean and healthy.

It is also worth mentioning that Floating Club-rush is a relatively fast-growing plant, which makes it ideal for quickly establishing a lush, green aquatic environment. In addition, the plant is able to grow in a variety of conditions, including both still and moving water, making it a versatile choice for a wide range of environments.

In conclusion, Floating Club-rush is a versatile, beautiful, and beneficial plant that is an excellent choice for any aquatic environment. Whether you are an aquarium hobbyist, pond owner, or just looking to create a natural and beautiful water feature, this plant is an excellent choice that is sure to bring joy and beauty to your space for years to come.

Distribution Map

Reproduced by kind permission of the BSBI.

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