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 Extinct
Adopted/Made Recovery Plans
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
TAS:Senecio georgianus (Grey Groundsel): Species Management Profile for Tasmania's Threatened Species Link (Threatened Species Section (TSS), 2014ez) [State Action Plan].
State Listing Status
NSW: Listed as Extinct (Threatened Species Conservation Act 1995 (New South Wales): December 2013)
TAS: Listed as Extinct (Threatened Species Protection Act 1995 (Tasmania): September 2012)
Non-statutory Listing Status
VIC: Listed as Extinct (Advisory List of Rare or Threatened Plants in Victoria: 2005)
Scientific name Senecio georgianus [12873]
Family Asteraceae:Asterales:Magnoliopsida:Magnoliophyta:Plantae
Species author DC.
Infraspecies author  
Reference Prodromus 6 (early Jan. 1838) 371.
Distribution map Species Distribution Map not available for this taxon.
Illustrations Google Images

Scientific name: Senecio georgianus

Common name: Grey Groundsel

Grey Groundsel was an erect, perennial shrub which grew 30–60 cm high. When young, the species was covered with white cottony wool which usually persisted on the underside of the leaves. The leaves were linear or lance-shaped, 2–8 cm long, with smooth or slightly toothed margins. The tiny yellow flowers were densely clustered into small branched flower heads which were arranged at the ends of the stems. Each flower head was surrounded at the base by a cylindrical covering of about 12 bracts (modified leaves), 5–7 mm long. The individual flowers were minute and bisexual. Fruit were small, dry and hairy with the seed distinct from the fruit wall. The species flowered from August to September (Leigh et al. 1984).

Grey Groundsel has been collected in NSW, South Australia, Victoria, Western Australia and Tasmania, but is now considered extinct (Davies 1992). This species was never considered common despite being collected from such a large area (Leigh et al. 1994)..

Collection locations included Clarence River, Macquarie River and Lake George, NSW; 'Salt Gully' north of Port Augusta, South Australia; Macalister River, Mitta-Mitta Range and Lake Omeo, Victoria; Darling Range, near Perth, Western Australia; and Derwent River near Risdon Cove, and once at the 'Agricultural Settlement, Hobart', Tasmania (Leigh et al. 1984)

All collections are old (prior to 1900) except for Victorian collections which were made in 1972. Victorian populations, at the time, were described as rare and localised. Grey Groundsel specimens from Tasmania and NSW are held by the British Museum (Leigh et al. 1984).

This species is presumed extinct and no extant populations are known.

Grey Groundsel is recorded as occurring in savannah grassland, undulating grassy eucalypt woodland, grassy sub-alpine ridges and collections frequently occurred in association with major rivers and lakes (Davies 1992; Leigh et al. 1984).

Grey Groundsel was distinguished from closely related taxa by the narrow-lanceolate leaves, numerous florets (up to 40) and the usually tomentose indumentum (Harden 1992).

Clearing and domestic stock grazing appear to have caused the extinction of Grey Groundsel. Collection locations in south-east Australia have been resurveyed and it was observed that each site has been converted to pasture (Leigh et al. 1984).

Although this species is presumed extinct, further field searches could be worthwhile (Leigh et al. 1984).

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
Uncategorised:Uncategorised:threats not specified Senecio georgianus in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage, 2006xf) [Internet].

Davies, R.J.P. (1992). Threatened Plants of the Murray Mallee, Mt Lofty Range and Kangaroo Island Region of South Australia. Conservation Council of South Australia.

Harden, G.J. (Ed.) (1992). Flora of New South Wales Volume 3. Kensington, NSW: University of NSW Press.

Leigh, J., R. Boden & J. Briggs (1984). Extinct and Endangered Plants of Australia. Melbourne, Victoria: Macmillan.

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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). Senecio georgianus in Species Profile and Threats Database, Department of the Environment, Canberra. Available from: http://www.environment.gov.au/sprat. Accessed Thu, 17 Apr 2014 16:46:40 +1000.