Cyperus diffusus 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Liliopsida Poales Cyperaceae

Scientific Name: Cyperus diffusus Vahl
Common Name(s):
English Dwarf Umbrella Grass

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2011
Date Assessed: 2010-09-18
Assessor(s): Rehel, S.
Reviewer(s): Rao, M.L.V., Gunaga, S., Narasimhan, D. & Juffe Bignoli, D.
Contributor(s): Molur, S.
Cyperus diffusus is widespread, has no major threats and is assessed as Least Concern.

Geographic Range [top]

Range Description:Cyperus diffusus is native to tropical and subtropical Asia and AustraliaIn India it is found in Madhya Pradesh, Andra Pradesh, Kerala and Tamil Nadu.
Countries occurrence:
Sri Lanka; Thailand; Viet Nam
India (Andhra Pradesh, Kerala, Madhya Pradesh, Tamil Nadu); Indonesia; Malaysia
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:Population data is not known.
Current Population Trend:Unknown
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:Cyperus diffusus grows by by pools and ponds with roots submerged in water. It grows in moist to boggy soil. Its growth is better in full sun, but can tolerate some shade. It is also grown as a houseplant.
Systems:Terrestrial; Freshwater
Continuing decline in area, extent and/or quality of habitat:No

Use and Trade [top]

Use and Trade: The leaves are antiseptic. It is grown as an ornamental grass in gardens. It is propagated by seeds and stem cuttings.

Threats [top]

Major Threat(s): There are no known threats to this species.

Conservation Actions [top]

Conservation Actions: Conservation measures are not known for this plant, but it is easily propagated.

Classifications [top]

5. Wetlands (inland) -> 5.4. Wetlands (inland) - Bogs, Marshes, Swamps, Fens, Peatlands
suitability:Suitable  major importance:Yes
5. Wetlands (inland) -> 5.7. Wetlands (inland) - Permanent Freshwater Marshes/Pools (under 8ha)
suitability:Suitable  major importance:Yes

In-Place Research, Monitoring and Planning
  Action Recovery plan:No
  Systematic monitoring scheme:No
In-Place Land/Water Protection and Management
  Conservation sites identified:Yes, over part of range
  Occur in at least one PA:Unknown
  Area based regional management plan:No
  Invasive species control or prevention:No
In-Place Species Management
  Harvest management plan:No
  Successfully reintroduced or introduced beningly:No
  Subject to ex-situ conservation:No
In-Place Education
  Subject to recent education and awareness programmes:No
  Included in international legislation:No
  Subject to any international management/trade controls:No

♦  Medicine - human & veterinary
 Local : ✓ 

♦  Pets/display animals, horticulture
 National : ✓ 

Bibliography [top]

Drake, R. 2007. The encyclopedia of grasses for livable landscapes. Timber Press, Inc., Portland, Oregon, USA.

IUCN. 2011. IUCN Red List of Threatened Species (ver. 2011.1). Available at: (Accessed: 30 June 2017).

RBG Kew. 2011. World Checklist of Selected Plant Families. London Available at:

Roy, S., Zashim Uddin, M., Hassan, M.A. and Rahman, M.M. 2008. Medico-botanical report on the Chakma community of Bangladesh. Bangladesh Association of Plant Taxonomists. 15(1): 67-72.

Citation: Rehel, S. 2011. Cyperus diffusus. The IUCN Red List of Threatened Species 2011: e.T176911A7329697. . Downloaded on 19 September 2018.
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