Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Datasheet

Kyllinga polyphylla
(navua sedge)

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Datasheet

Kyllinga polyphylla (navua sedge)

Summary

  • Last modified
  • 16 November 2021
  • Datasheet Type(s)
  • Invasive Species
  • Pest
  • Host Plant
  • Preferred Scientific Name
  • Kyllinga polyphylla
  • Preferred Common Name
  • navua sedge
  • Taxonomic Tree
  • Domain: Eukaryota
  •   Kingdom: Plantae
  •     Phylum: Spermatophyta
  •       Subphylum: Angiospermae
  •         Class: Monocotyledonae
  • Summary of Invasiveness
  • Navua sedge is a vigorous grass-like, perennial sedge. It normally grows 30–70 cm in height but can reach...

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Pictures

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PictureTitleCaptionCopyright
Leaves and white knob-like flowers of Kyllinga polyphylla. Gordonvale, far north Queensland, Australia.
TitleLeaves and flowers
CaptionLeaves and white knob-like flowers of Kyllinga polyphylla. Gordonvale, far north Queensland, Australia.
CopyrightThis picture is the property of Sean Reason.
Leaves and white knob-like flowers of Kyllinga polyphylla. Gordonvale, far north Queensland, Australia.
Leaves and flowersLeaves and white knob-like flowers of Kyllinga polyphylla. Gordonvale, far north Queensland, Australia. This picture is the property of Sean Reason.
Kyllinga polyphylla, in the wet tropics at Gordonvale, far north Queensland, Australia.
TitleInvasive habit
CaptionKyllinga polyphylla, in the wet tropics at Gordonvale, far north Queensland, Australia.
CopyrightThis picture is the property of Sean Reason.
Kyllinga polyphylla, in the wet tropics at Gordonvale, far north Queensland, Australia.
Invasive habitKyllinga polyphylla, in the wet tropics at Gordonvale, far north Queensland, Australia. This picture is the property of Sean Reason.
Kyllinga polyphylla, in the wet tropics at Gordonvale, far north Queensland, Australia.
TitleInvasive habit
CaptionKyllinga polyphylla, in the wet tropics at Gordonvale, far north Queensland, Australia.
CopyrightThis picture is the property of Sean Reason.
Kyllinga polyphylla, in the wet tropics at Gordonvale, far north Queensland, Australia.
Invasive habitKyllinga polyphylla, in the wet tropics at Gordonvale, far north Queensland, Australia. This picture is the property of Sean Reason.

Identity

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Preferred Scientific Name

  • Kyllinga polyphylla Willd. ex Kunth

Preferred Common Name

  • navua sedge

Other Scientific Names

  • Cyperus aromaticus (Ridley) Mattf. & Kuk. (1936)

Summary of Invasiveness

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Navua sedge is a vigorous grass-like, perennial sedge. It normally grows 30–70 cm in height but can reach 2 m. Spread is by seed and rhizomes. It is native to tropical Africa but has been introduced to  Australia, Sri Lanka, Malaysia and some Pacific Islands. It is an aggressive colonizer and outcompetes pasture and native plants forming dense stands, and is also a weed in sugarcane in Australia. It is unpalatable to cattle and can rapidly invade overgrazed pasturelands. See the Biosecurity Queensland fact sheet for further information (http://www.dpi.qld.gov.au/documents/Biosecurity_EnvironmentalPests/IPA-Navua-Sedge-PP53.pdf). It has been ranked 12th in a list of nonindigenous weed species not in cultivation with potential to invade the USA (Parker et al., 2007).

Taxonomic Tree

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  • Domain: Eukaryota
  •     Kingdom: Plantae
  •         Phylum: Spermatophyta
  •             Subphylum: Angiospermae
  •                 Class: Monocotyledonae
  •                     Order: Cyperales
  •                         Family: Cyperaceae
  •                             Genus: Kyllinga
  •                                 Species: Kyllinga polyphylla

Distribution Table

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The distribution in this summary table is based on all the information available. When several references are cited, they may give conflicting information on the status. Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report.

Last updated: 10 Feb 2022
Continent/Country/Region Distribution Last Reported Origin First Reported Invasive Reference Notes

Africa

AngolaPresentNative
BurundiPresentNative
CameroonPresentNative
Central African RepublicPresentNative
ComorosPresentNative
Congo, Democratic Republic of thePresentNative
Congo, Republic of thePresentNative
GabonPresentNative
GhanaPresentNative
GuineaPresentNative
KenyaPresentNative
MadagascarPresentNative
MauritiusPresentNative
NigeriaPresentNative
RéunionPresentNative
SeychellesPresentNative
SomaliaPresentNative
South AfricaPresentNative
TanzaniaPresentNative
TogoPresentNative
UgandaPresentNative

Asia

British Indian Ocean TerritoryPresentIntroduced
BruneiPresentIntroduced
ChinaPresentPresent based on regional distribution.
Hong KongPresentIntroduced
IndiaPresentIntroduced
MalaysiaPresentIntroduced
-Peninsular MalaysiaPresent
Sri LankaPresentIntroduced
TaiwanPresentIntroduced2007
ThailandPresentIntroduced
VietnamPresentIntroduced

North America

MartiniquePresentIntroduced

Oceania

AustraliaPresentPresent based on regional distribution.
-QueenslandPresentIntroducedInvasive
FijiPresentIntroduced
French PolynesiaPresentIntroduced
New CaledoniaPresentIntroduced
New ZealandPresent
SamoaPresentIntroduced
Solomon IslandsPresentIntroduced

South America

French GuianaPresentIntroduced

Habitat List

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CategorySub-CategoryHabitatPresenceStatus
Terrestrial ManagedCultivated / agricultural land Present, no further details Harmful (pest or invasive)
Terrestrial ManagedManaged grasslands (grazing systems) Principal habitat Harmful (pest or invasive)
Terrestrial ManagedDisturbed areas Principal habitat Harmful (pest or invasive)

Host Plants and Other Plants Affected

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Plant nameFamilyContextReferences
Oryza sativa (rice)PoaceaeUnknown
Saccharum officinarum (sugarcane)PoaceaeMain

Impact Summary

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CategoryImpact
Crop production Negative
Environment (generally) Negative
Livestock production Negative

Risk and Impact Factors

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Invasiveness
  • Proved invasive outside its native range
  • Tolerates, or benefits from, cultivation, browsing pressure, mutilation, fire etc
  • Pioneering in disturbed areas
  • Fast growing
  • Has high reproductive potential
  • Reproduces asexually
Impact outcomes
  • Ecosystem change/ habitat alteration
  • Monoculture formation
  • Negatively impacts agriculture
  • Negatively impacts animal health
  • Reduced native biodiversity
  • Threat to/ loss of native species
Impact mechanisms
  • Competition - monopolizing resources
  • Competition - smothering

References

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Hakim, M. A., Juraimi, A. S., Ismail, M. R., Hanafi, M. M., Selamat, A., 2013. A survey on weed diversity in coastal rice fields of Sebarang Perak in Peninsular Malaysia. JAPS, Journal of Animal and Plant Sciences, 23(2), 534-542. http://www.thejaps.org.pk/docs/v-23-2/33.pdf

Parker C; Caton BP; Fowler L, 2007. Ranking nonindigenous weed species by their potential to invade the United States. Weed Science, 55(4):386-397. http://wssa.allenpress.com/wssaonline/?request=index-html

USDA-ARS, 2012. Germplasm Resources Information Network (GRIN). Online Database. Beltsville, Maryland, USA: National Germplasm Resources Laboratory. https://npgsweb.ars-grin.gov/gringlobal/taxon/taxonomysearch.aspx

Distribution References

CABI, Undated. CABI Compendium: Status inferred from regional distribution. Wallingford, UK: CABI

CABI, Undated a. CABI Compendium: Status as determined by CABI editor. Wallingford, UK: CABI

Hakim M A, Juraimi A S, Ismail M R, Hanafi M M, Selamat A, 2013. A survey on weed diversity in coastal rice fields of Sebarang Perak in Peninsular Malaysia. JAPS, Journal of Animal and Plant Sciences. 23 (2), 534-542. http://www.thejaps.org.pk/docs/v-23-2/33.pdf

James T K, Champion P D, Bullians M, Rahman A, 2011. Weed biosecurity breach through coco peat imports. In: 23rd Asian-Pacific Weed Science Society Conference. Volume 1: weed management in a changing world, Cairns, Queensland, Australia, 26-29 September 2011 [23rd Asian-Pacific Weed Science Society Conference. Volume 1: weed management in a changing world, Cairns, Queensland, Australia, 26-29 September 2011.], Cairns, Australia: Asian-Pacific Weed Science Society. 210-216.

Seebens H, Blackburn T M, Dyer E E, Genovesi P, Hulme P E, Jeschke J M, Pagad S, Pyšek P, Winter M, Arianoutsou M, Bacher S, Blasius B, Brundu G, Capinha C, Celesti-Grapow L, Dawson W, Dullinger S, Fuentes N, Jäger H, Kartesz J, Kenis M, Kreft H, Kühn I, Lenzner B, Liebhold A, Mosena A (et al), 2017. No saturation in the accumulation of alien species worldwide. Nature Communications. 8 (2), 14435. http://www.nature.com/articles/ncomms14435

USDA-ARS, 2012. Germplasm Resources Information Network (GRIN). Online Database. Beltsville, Maryland, USA: National Germplasm Resources Laboratory. https://npgsweb.ars-grin.gov/gringlobal/taxon/taxonomysimple.aspx

Distribution Maps

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