Biodiversity

Species Profile and Threats Database


For information to assist proponents in referral, environmental assessments and compliance issues, refer to the Policy Statements and Guidelines (where available), the Conservation Advice (where available) or the Listing Advice (where available).
 
In addition, proponents and land managers should refer to the Recovery Plan (where available) or the Conservation Advice (where available) for recovery, mitigation and conservation information.

EPBC Act Listing Status Listed as Vulnerable
Listing and Conservation Advices Commonwealth Conservation Advice on Eleocharis obicis (Threatened Species Scientific Committee, 2008nf) [Conservation Advice].
 
Commonwealth Listing Advice on Eleocharis obicis (a spike rush) (Threatened Species Scientific Committee (TSSC), 2012at) [Listing Advice].
 
Recovery Plan Decision Recovery Plan not required, included on the Not Commenced List (1/11/2009).
 
Adopted/Made Recovery Plans
Other EPBC Act Plans Threat abatement advice for predation, habitat degradation,competition and disease transmission by feral pigs (2013) (Commonwealth of Australia, 2014p) [Threat Abatement Plan].
 
Federal Register of
    Legislative Instruments
Declaration under s178, s181, and s183 of the Environment Protection and Biodiversity Conservation Act 1999 - List of threatened species, List of threatened ecological communities and List of threatening processes (Commonwealth of Australia, 2000) [Legislative Instrument].
 
State Government
    Documents and Websites
NSW:Spike-rush - profile (NSW Department of Environment, Climate Change and Water (NSW DECCW), 2005cz) [Internet].
State Listing Status
NSW: Listed as Vulnerable (Threatened Species Conservation Act 1995 (New South Wales): December 2013 list)
Non-statutory Listing Status
VIC: Listed as Vulnerable (Advisory List of Rare or Threatened Plants in Victoria: 2005)
Scientific name Eleocharis obicis [15320]
Family Cyperaceae:Cyperales:Liliopsida:Magnoliophyta:Plantae
Species author L.Johnson & O.Evans
Infraspecies author  
Reference Contributions from the New South Wales National Herbarium 4 (20 May 1968) 71
Distribution map Species Distribution Map

This is an indicative distribution map of the present distribution of the species based on best available knowledge. See map caveat for more information.

Illustrations Google Images

Scientific Name: Eleocharis obicis

Eleocharis obicis is a small, tufted perennial sedge, which grows to 30 cm high (Ayers et al. 1996).

Flower heads are straw-coloured, tinged red-brown, 20—30 cm long and 2.5 cm wide (TSSC 2012at). Nuts are pale yellow to dark-brown, have a distinct neck about 1.5 mm long and 1.2 mm in diameter, are unequally triangular in cross-section and have red bristles (TSSC 2012at).

This species occurs in central to south-west NSW and in north-west Victoria (ALA 2013).

The type specimen was collected from the Barrier Range near Broken Hill, NSW, in 1885 (Cunningham et al. 1992), but according to Briggs & Leigh (1996), the species is now extinct in this region.

More recent records are from the South-west Plains (sic) region of NSW (Briggs & Leigh 1996), with collections made in 1973 on the Lachlan River floodplain at Micabil, near Condobolin (Cunningham et al. 1992) and another record near Hay (Harden 1993). Ayers and colleagues (1996) provided a map of most NSW records.

Although the species does not appear in the reference book, Flora of Victoria (Walsh & Entwisle 1994), the Melbourne Herbarium confirms that the taxon occurs in north-west Victoria (Walsh, N.G. 2003 pers. comm.).

The species grows in ephemerally wet locations, such as roadside mitre drains and depressions, usually in low-lying grasslands (Harden 1993).

In NSW, the species is known to occur in heavy clay soils on floodplains, claypans and red sandy soil over clay (TSSC 2012at).

Flowering has been recorded in November (Cunningham et al. 1992).

The known threats to Eleocharis obicis are habitat clearing and degradation due to agriculture, grazing and trampling by stock, weed invasion and grazing by exotic species (namely the Rabbit, Oryctolagus cuniculus, and the Pig, Sus scrofa).

In addition, habitat fragmentation and altered hydrology (and subsequent increased salinity) are thought to be potential threats to this species.

Documents relevant to the management of Eleocharis obicis can be found at the start of the profile.

The following table lists known and perceived threats to this species. Threats are based on the International Union for Conservation of Nature and Natural Resources (IUCN) threat classification version 1.1.

Threat Class Threatening Species References
Agriculture and Aquaculture:Agriculture and Aquaculture:Land clearing, habitat fragmentation and/or habitat degradation Commonwealth Conservation Advice on Eleocharis obicis (Threatened Species Scientific Committee, 2008nf) [Conservation Advice].
Agriculture and Aquaculture:Livestock Farming and Grazing:Grazing pressures and associated habitat changes Commonwealth Conservation Advice on Eleocharis obicis (Threatened Species Scientific Committee, 2008nf) [Conservation Advice].
Agriculture and Aquaculture:Livestock Farming and Grazing:Habitat alteration (vegetation, soil, hydrology) due to trampling and grazing by livestock Commonwealth Conservation Advice on Eleocharis obicis (Threatened Species Scientific Committee, 2008nf) [Conservation Advice].
Ecosystem/Community Stresses:Indirect Ecosystem Effects:Loss and/or fragmentation of habitat and/or subpopulations Commonwealth Conservation Advice on Eleocharis obicis (Threatened Species Scientific Committee, 2008nf) [Conservation Advice].
Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Competition and/or habitat degradation Oryctolagus cuniculus (Rabbit, European Rabbit) Commonwealth Conservation Advice on Eleocharis obicis (Threatened Species Scientific Committee, 2008nf) [Conservation Advice].
Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Competition and/or habitat degradation by weeds Commonwealth Conservation Advice on Eleocharis obicis (Threatened Species Scientific Committee, 2008nf) [Conservation Advice].
Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Grazing, tramping, competition and/or habitat degradation Sus scrofa (Pig) Commonwealth Conservation Advice on Eleocharis obicis (Threatened Species Scientific Committee, 2008nf) [Conservation Advice].
Natural System Modifications:Dams and Water Management/Use:Salinity Commonwealth Conservation Advice on Eleocharis obicis (Threatened Species Scientific Committee, 2008nf) [Conservation Advice].

Atlas of Living Australia (ALA) (2013). Atlas of Living Australia. [Online]. Available from: http://www.ala.org.au/.

Ayers, D., S. Nash & K. Baggett (Eds) (1996). Threatened Species of Western New South Wales. Hurstville: NSW NPWS.

Briggs, J.D. & J.H. Leigh (1996). Rare or Threatened Australian Plants - Revised Edition. Collingwood: CSIRO Publishing.

Cunningham, G.M., W.E. Mulham, P.L. Milthorpe & J.H. Leigh (1992). Plants of Western New South Wales. Melbourne: Inkata Press.

Harden, G.J. (ed) (1993). Flora of New South Wales, Volume Four. Kensington, NSW: University of NSW Press.

Threatened Species Scientific Committee (TSSC) (2012at). Commonwealth Listing Advice on Eleocharis obicis (a spike rush). [Online]. Department of Sustainability, Environment, Water, Population and Communities. Canberra, ACT: Department of Sustainability, Environment, Water, Population and Communities. Available from: http://www.environment.gov.au/biodiversity/threatened/species/pubs/15320-listing-advice.pdf.

Victoria Department of Sustainability and Environment (Vic. DSE) (2005a). Advisory List of Rare or Threatened Plants in Victoria - 2005. [Online]. East Melbourne, Victoria: Department of Sustainability and Environment. Available from: http://www.dse.vic.gov.au/dse/nrenpa.nsf/93a98744f6ec41bd4a256c8e00013aa9/cfd982b7b4c0bc93ca256fa2007affbc/$FILE/Advisory%20List%20of%20Rare%20or%20Threatened%20Plants%20in%20Victoria%20-%202005.pdf.

Walsh, N.G. (2003). Personal Communication.

Walsh, N.G. & T.J. Entwisle. (eds) (1994). Flora of Victoria, Volume Two. Melbourne: Royal Botanic Gardens, Inkata.

EPBC Act email updates can be received via the Communities for Communities newsletter and the EPBC Act newsletter.

This database is designed to provide statutory, biological and ecological information on species and ecological communities, migratory species, marine species, and species and species products subject to international trade and commercial use protected under the Environment Protection and Biodiversity Conservation Act 1999 (the EPBC Act). It has been compiled from a range of sources including listing advice, recovery plans, published literature and individual experts. While reasonable efforts have been made to ensure the accuracy of the information, no guarantee is given, nor responsibility taken, by the Commonwealth for its accuracy, currency or completeness. The Commonwealth does not accept any responsibility for any loss or damage that may be occasioned directly or indirectly through the use of, or reliance on, the information contained in this database. The information contained in this database does not necessarily represent the views of the Commonwealth. This database is not intended to be a complete source of information on the matters it deals with. Individuals and organisations should consider all the available information, including that available from other sources, in deciding whether there is a need to make a referral or apply for a permit or exemption under the EPBC Act.

Citation: Department of the Environment (2014). Eleocharis obicis in Species Profile and Threats Database, Department of the Environment, Canberra. Available from: http://www.environment.gov.au/sprat. Accessed Thu, 18 Sep 2014 23:05:43 +1000.