Acacia acanthoclada
| Harrow Wattle | |
|---|---|
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| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Genus: | Acacia |
| Species: | A. acanthoclada |
| Binomial name | |
| Acacia acanthoclada F.Muell. |
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Acacia acanthoclada (Harrow Wattle) is a low, divaricate, highly branched and spinescent shrub endemic to Australia.
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[edit] Description
It grows up to 2 metres high and has phyllodes which measure 0.2 to 0.6 cm long and 1 to 2 mm wide. The phyllodes are straight, narrow-cuneate, slightly notched at the apex, and feature prominent midveins. Branchlets are terete, whitish and densely pubescent; as the branch grows it becomes glabrous and terminates in rigid spinose point. The bark is grey, white or occasionally greenish.
The golden-yellow flowerheads are peduncles, 5–15 cm long, that appear at phyllode axils. Flower parts are pentamerous, with the sepals fused into a synsepalous calyx. Flowers appear from August to October, followed by irregularly twisted, glaucous, brown seed pods which are 3 to 6 cm long and 3 to 6 mm wide.
Its occurs naturally in Western Australia, South Australia and Victoria and is listed as endangered under the Threatened Species Conservation Act in New South Wales.[1]
The type was collected near Kulkyne, Victoria by Ferdinand von Mueller.[2]
[edit] Distribution
The species is relatively uncommon and is found scattered at several sites in isolated clumps: Buronga, Wentworth and Pooncarie districts in far south-western New South Wales, Victoria, South Australia and Arumpo Station and Montarna Station in Western Australia. Arumpo Station in particular is home to a stunted sample, which is threantened by overgrazing by kangaroos.
[edit] Habitat
This species usually grows on deep, loose, sandy soil. Its inhabits undisturbed mallee areas, often on ridges and dunes, and more rarely on rock outcrops.[3]
[edit] See also
Associated species:
- Eucalyptus dumosa
- Eucalyptus socialis
- Eucalyptus gracilis
- Eucalyptus costata
- Callitris verrucosa
- Codonocarpus cotinifolius
- Triodia scariosa
[edit] References
- ^ Kodela P.G. & G.J. Harden. "Acacia acanthoclada". PlantNET - New South Wales Flora Online. Royal Botanic Gardens & Domain Trust, Sydney Australia. http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Acacia~acanthoclada. Retrieved 21 March 2011.
- ^ "Acacia acanthoclada". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government, Canberra. http://www.anbg.gov.au/cgi-bin/apni?TAXON_NAME=Acacia+acanthoclada. Retrieved 21 March 2011.
- ^ "Harrow Wattle - profile". threatened species. Department of Environment and Conservation (NSW). http://www.threatenedspecies.environment.nsw.gov.au/tsprofile/profile.aspx?id=10001. Retrieved 21 March 2011.
- Australian National Botanic Gardens: Photo of Acacia acanthoclada
- "Acacia acanthoclada". FloraBase. Department of Environment and Conservation, Government of Western Australia. http://florabase.dec.wa.gov.au/browse/profile/3195.
- NSW National Parks and Wildlife Service: Acacia acanthoclada - endangered species listing
- "Acacia acanthoclada F. Muell.". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government. http://www.anbg.gov.au/cgi-bin/apni?taxon_id=3354.
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