Nature conservation

Threatened species

Ausfeld's Wattle - profile

Indicative distribution


   Loading map...
Key:
known
predicted
The areas shown in pink and/purple are the sub-regions where the species or community is known or predicted to occur. They may not occur thoughout the sub-region but may be restricted to certain areas. ( click here to see geographic restrictions). The information presented in this map is only indicative and may contain errors and omissions.
Scientific name: Acacia ausfeldii
Conservation status in NSW: Vulnerable
Commonwealth status: Not listed
Gazetted date: 07 Sep 2007
Profile last updated: 02 Jan 2019

Description

Acacia ausfeldii is an erect or spreading shrub 2 - 4 m high with branchlets angled or flattened, resinous and smooth. The phyllodes (leaves) are narrowly elliptic to linear-oblong, straight to slightly curved, 2 - 7 cm long, 2 - 5 mm wide, hairless and are dotted with resin glands. Acacia ausfeldii phyllodes have a prominent mid-vein and less pronounced lateral veins, they also have an obtuse apex with a short sharp tip. There is a small gland located near the base of the phyllode and the pulvinus is less than 2 mm long. Two or sometimes 3 flower clusters stemming from the leaf axil and the flower stalks are 4 - 9 mm long, hairy and enclosed by small oval shaped bracts. Flower heads are bright yellow and 6 - 8 mm in diameter. Seed pods are straight or slightly curved and 4 - 9 cm long by 2 - 4 mm wide.

Distribution

Found to the east of Dubbo in the Mudgee-Ulan-Gulgong area of the NSW South Western Slopes bioregion, with some records in the adjoining Brigalow Belt South, South Eastern Highlands and the Sydney Basin bioregions. Populations are recorded from Yarrobil National Park, Goodiman State Conservation Area and there is a 1963 record from Munghorn Gap Nature Reserve. A large population is also known from Tuckland State Forest to the northwest of Gulgong.

Habitat and ecology

  • Established plants are likely to be killed by fire, as mature and juvenile plants have a single-stemmed growth form.
  • Associated species include Eucalyptus albens, E. blakelyi and Callitris spp., with an understorey dominated by Cassinia spp. and grasses.
  • Acacia ausfeldii is likely to have a dormant soil seedbank from which germination is stimulated by fire; a small number of seeds have been observed to germinate in the absence of fire.
  • When stimulated by fire, germination appears to be reduced at depth, and by low fire temperature. Laboratory experiments show strong germination only at the highest temperature treatment of 100ºC (Brown et al. 2003).
  • Flowers from August to October.

Regional distribution and habitat

Click on a region below to view detailed distribution, habitat and vegetation information.


Threats

Recovery strategies

Activities to assist this species

Information sources

IBRA Bioregion IBRA Subregion Known or predicted Geographic restrictions region
Brigalow Belt SouthTalbragar Valley Known None
NSW South Western SlopesInland Slopes Known None
NSW South Western SlopesLower Slopes Known None
South Eastern HighlandsHill End Predicted None
Sydney BasinKerrabee Known None
Sydney BasinWollemi Known None