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 as Zieria tuberculata
Listing and Conservation Advices Commonwealth Conservation Advice on Zieria tuberculata (Warty Zieria) (Threatened Species Scientific Committee, 2008fo) [Conservation Advice].
 
Recovery Plan Decision Recovery Plan not required, included on the Not Commenced List (1/11/2009).
 
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] as Zieria tuberculata.
 
Amendment to the list of threatened species under section 178 of the Environment Protection and Biodiversity Conservation Act 1999 (11/04/2007) (Commonwealth of Australia, 2007f) [Legislative Instrument] as Zieria tuberculata.
 
State Government
    Documents and Websites
NSW:Warty Zieria - profile (NSW Department of Environment, Climate Change and Water (NSW DECCW), 2005nq) [Internet].
State Listing Status
NSW: Listed as Vulnerable (Threatened Species Conservation Act 1995 (New South Wales): December 2013 list) as Zieria tuberculata
Scientific name Zieria tuberculata [56736]
Family Rutaceae:Sapindales:Magnoliopsida:Magnoliophyta:Plantae
Species author J.A.Armstrong
Infraspecies author  
Reference Australian Systematic Botany 15(3): 449, figs 131-132, map fig. 133 (2002).
Other names Zieria sp. 6 (sp. 'G'; Mt.Dromedary) [24553]
Zieria tuberculata Armstrong ms. [67317]
Zieria tuberculata J.A.Armstrong ms. [67388]
Zieria sp. C [68098]
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

A rounded, open to moderately dense shrub, to 3.5 m high (Briggs & Leigh 1990; Harden 2002; Armstrong 2002) with conspicuous creamy white flowers (Armstrong 2002).

Now known only from Little Dromedary Mt and the lower eastern slopes of Mt Dromedary in the Central Tilba area on the South Coast of NSW, the species has a geographic range of 6 km (Briggs & Leigh 1990; Armstrong 2002). In 1931, it was collected from Good Dog Mountain in the Cambewarra Range, north of Nowra but more recent searches have failed to find the species there. Although this site is now heavily revegetated, the species may have been eliminated from the area as a result of earlier clearing and grazing (Briggs & Leigh 1990).

The total known population of about 900 plants grows at eight sites (Briggs & Leigh 1990; Armstrong 2002). Four populations are on private property. Three of the smaller populations totalling about 60 plants occur within Gulaga NP (Briggs & Leigh 1996; Armstrong 2002) and the Little Dromedary Mt population is on crown land (Briggs & Leigh 1990).

Site Details (Briggs & Leigh 1990):

Site no.LocationLand tenureAreaNo. of plantsComments
1Little Dromedary MtnVacant crown land4 ha300Appears to be the most secure site. Ten additional plants were found east-north-east of the summit in a grazed paddock. There were numerous seedlings at the summit in April 2001. These were very small, usually less than 5 cm high (Halasz, L. 2001, pers. comm.).
2Portion 321 - NW of Central TilbaPrivate freehold7 ha300No seedlings
3Central Tilba Reservoir SitePrivate freehold3 ha60-
4Portions 321/295 - NNW of Central TilbaPrivate freehold0.75 ha45No seedlings
5Portion 22 - SW of 'Ben Braggie' homesteadPrivate freehold; edge possibly Gulaga NP1 ha80No seedlings
6Portion 326 - SW of 'Ben Braggie' homesteadPrivate freehold0.3 ha55-
7Gulaga NP/Portion 461 - SW of 'Ben Braggie' homesteadNational Park0.6 ha10Five additional plants found 150 m south
8Mt Dromedary Fire TrailNational Park0.06 ha10-

This species was formerly known as Zieria sp, nov. G, Z. sp. C, Z. sp. G and Z. sp. 6 (Briggs & Leigh 1990; Harden 1991; Armstrong 2002).

The species grows in shrub communities on monzonite rock outcrops, fringed by temperate rainforest or eucalypt open forest. The species occasionally extends into the eucalypt forest understorey (Briggs & Leigh 1990; Armstrong 2002). Associated heath species include Kunzea ambigua, Acacia mearnsii, Beyeria lasiocarpa, Ficus rubiginosa, Prostanthera nivea, Dodonaea viscosa, Notelaea venosa, Plectranthus parviflorus, Dendrobium speciosum and Coprosma sp. (Briggs & Leigh 1990).

Site Details (Briggs & Leigh 1990):
Site 1 - Little Dromedary Mt. 150-180 m asl. Summit and precipitous upper slopes of isolated peak rising from undulating terrain, found on all aspects but predominantly northerly and westerlly. Soil is skeletal, humus-rich, black sandy loam.
Site 2 - Portion 321. 120-190 m. Extensive domes of rock outcrop at the base of a spur, which rises steeply to the mountain summit to the west; most aspects but predominantly northerly and easterly and not westerly. Soil is a skeletal humus-rich sandy loam.
Site 3 - Central Tilba Reservoir Site. 80-110 m asl. Rock outcrop forming low hill near base of mountain; all aspects except southerly. The eastern portion of the site has been cleared and is grazed. Soil is a skeletal grey loam.
Site 4 - Portions 321/295. 130 m asl. Rock outcrop forming low hill near base of mountain; all aspects except southerly.
Site 5 - Portion 22. 130-150 m asl. Lower slope of a spur rising to the south-west to the summit of a high mountain; north-easterly aspect. The site has been cleared in the past but the shrub component of the original flora is regenerating. Soil is a brown sandy loam.
Site 6 - Portion 326. 130 m asl. Rock outcrop on low hill, south-westerly and southerly aspect. A remnant shrub community on cleared land, little regeneration. Soil is a shallow brown loam.
Site 7 - Gulaga NP, Portion 461. 200-230 m asl. Rocky knoll on the lower part of a spur rising to the south-west to the summit of the mountain, north-westerly aspect. Soil is a skeletal, dark-brown sandy loam.
Site 8 - Mt Dromedary Fire Trail. 260 m asl. Moderately steep slope near the base of the mountain, northerly aspect. The site is bisected by the firetrail. Soil is a brown gravelly loam.

Flowers appear Aug. and Sept. (Briggs & Leigh 1990) in late winter to spring, with fruits observed in summer (Armstrong 2002).

At Little Dromedary Mtn, pollen-feeding beetles and flies seeking pollen and nectar were observed effectively pollinating the blossoms (Armstrong 2002).

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 Zieria tuberculata in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage (DEH), 2006xh) [Internet].
Agriculture and Aquaculture:Livestock Farming and Grazing:Grazing pressures and associated habitat changes Commonwealth Conservation Advice on Zieria tuberculata (Warty Zieria) (Threatened Species Scientific Committee, 2008fo) [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 Zieria tuberculata (Warty Zieria) (Threatened Species Scientific Committee, 2008fo) [Conservation Advice].
Ecosystem/Community Stresses:Indirect Ecosystem Effects:Restricted geographical distribution (area of occupancy and extent of occurrence) Zieria tuberculata in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage (DEH), 2006xh) [Internet].
Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Competition and/or habitat degradation Lantana camara (Lantana, Common Lantana, Kamara Lantana, Large-leaf Lantana, Pink Flowered Lantana, Red Flowered Lantana, Red-Flowered Sage, White Sage, Wild Sage) Zieria tuberculata in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage (DEH), 2006xh) [Internet].
Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Competition and/or habitat degradation by weeds Zieria tuberculata in Species Profile and Threats (SPRAT) database (Department of the Environment and Heritage (DEH), 2006xh) [Internet].

Armstrong, J.A. (2002). Zieria (Rutaceae): a systematic and evolutionary study. Australian Systematic Botany. 15:277-463.

Briggs, J.D. & J.H. Leigh (1990). Delineation of Important Habitats of Threatened Plant Species in South-Eastern New South Wales. Canberra: Australian Heritage Commission.

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

Halasz, L. (2001). Personal communication. Canberra, Australian Biological Resources Study.

Harden, G.J. (ed.) (1991). Flora of New South Wales, Volume Two. Kensington, NSW: University of NSW Press.

Harden, G.J. (ed.) (2002). Flora of New South Wales, Volume Two - rev. edn. University of New South Wales Press, Sydney.

Meredith, L.D. & M.M. Richardson (1990). Rare or Threatened Australian Plant Species in Cultivation in Australia. Report Series No. 15. Page(s) 1-114. Canberra: Australian National Parks and Wildlife Service.

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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). Zieria tuberculata in Species Profile and Threats Database, Department of the Environment, Canberra. Available from: http://www.environment.gov.au/sprat. Accessed Fri, 22 Aug 2014 15:21:25 +1000.