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Species profile—Acacia pedleyi

Classification

Plantae (plants) → Equisetopsida (land plants) → MimosaceaeAcacia pedleyi

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Species details

Kingdom
Plantae (plants)
Class
Equisetopsida (land plants)
Family
Mimosaceae
Scientific name
Acacia pedleyi Tindale & Kodela
WildNet taxon ID
8381
Alternate name(s)
Pedley's wattle
Nature Conservation Act 1992 (NCA) status
Vulnerable
Back on Track (BoT) status
Low
Conservation significant
Yes
Confidential
No
Endemicity
Native
Pest status
Nil
Short Notes
BRI 474665
Description
Acacia pedleyi is a slender erect tree growing to 10 m high. The bark is smooth, becoming rough near the base later; greenish above and grey at the base. The branchlets are terete, apically angled, brown to greenish brown, puberulous, with ridges to 0.3 mm high, minutely tuberculate. The leaves are bipinnate, herbaceous, feathery and dark green. There are 3 to 8 pairs of pinnae, which are joined to a long central axis 2.1 to 7 cm long. Each pinnae comprises of 20 to 104 pairs of oblong pinnules, each 0.8 to 3.6 mm long and 0.3 to 0.7 mm wide. The young foliage tips are pale yellow to golden in colour and densely covered on both surfaces with silky hairs. The leaf and flower stalks are densely covered in white or yellowish or reddish brown hairs. There are small round glands at the base of each pinnae, and one to three glands between each pinnae. The inflorescences are in axillary racemes, or terminal or axillary false-panicles. The flower heads are globular, 3 to 5 mm in diameter and contain 14 to 20 pale yellow flowers. The pods are straight sided or constricted between the seeds, straight or slightly curved, 4 to 13 cm long and 5 to 9 mm wide, thinly coriaceous, dull brownish black, and sparsely puberulous. There are 4 to 13 black seeds per pod. The seeds are slightly compressed 4.4 to 6.1 mm long by 2.6 to 3.2 mm wide, with a cream aril.
A. pedleyi is allied to A. storyi but is more hairy, and the tips of the pinnules are more rounded than A. storyi. However, the two species do not grow in the same area. A. pedleyi is unlikely to be confused with other species in the areas in which it is located. (Tindale and Kodela, 1992; 2001).
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Distribution
A. pedleyi is mostly restricted to the Callide and Calliope Ranges, Port Curtis District, Qld. There is one population located close to Biloela and another just outside of Degalgil State Forest (Queensland Herbarium, 2012).
Distributional limits
-24.2190833, 150.526075
-24.4391667, 151.0825
Range derivation
Range derived from extent of the taxon's verified records
Habitat
Acacia pedleyi is found on alluvial flats, hill slopes and tops of ridges in open forest and woodland communities. A. pedleyi occurs in understorey, sometimes with Acacia crassa, in open forest with Corymbia citriodora, E. moluccana and/or E. crebra, and in popular box (E. populnea) woodland (Tindale and Kodela, 1992; Queensland Herbarium, 2012).
Behaviour
A. pedleyi is being used in spoil rehabilitation work at Callide coalfields and appears to be adapting well (Acacia pedleyi QLD wildlife). That the species has been observed in regrowth areas partially cleared for grazing, suggests it may successfully regenerate after timber harvesting (Barker, 1995).
Reproduction
Little is known on the biology and ecology of A. pedleyi. Flowers have been recorded in May, November and December and fruiting from May and October. It may also flower from April to May, because of fruiting recorded in October (Tindale and Kodela, 1992; 2001; Queensland Herbarium, 2012).
Threatening processes
A. pedleyi is restricted to a small area in low abundance. It does not occur in any protected areas. Some populations have been destroyed by mining and clearing activities, and these activities represent a continued threat. Grazing by cattle may also be a threat as cattle are known to graze Acacia spp. Annual burning in late winter/spring to promote grass for cattle grazing has been a management practice in forest types in which this species occurs, and may also constitute a threat (Barker 1995).
Status notes
Acacia pedleyi is listed as Vulnerable under Queensland's Nature Conservation Act 1992.
Management documents
Barker M (1999). Acacia pedleyi Species Management Profile, Department of Natural Resources, Queensland.
Management recommendations
Management recommendations for the protection of A. pedleyi and its habitat have been described by Barker (1995). These include 4 actions which involve: establishment of a protective buffer to a minimum area of 0.3 ha, with all A. pedleyi occurring 30 m inside the protective buffer; evaluation of the impact of timber harvesting, and application of adaptive management techniques; where A. pedleyi occurs, the interval between prescribed burns should be 6-30 years; and monitor the impact of grazing and adjust accordingly (Barker, 1995).
Notes
Occurs in the following Queensland pastoral district: Port Curtis (Queensland Herbarium 2012).
References
Barker, M. (1995). Acacia pedleyi Species Management Profile, Department of Natural Resources, Queensland.
Queensland Herbarium (2012). Specimen label information. Queensland Herbarium. Accessed 19/04/2012.
Tindale, M.D. and Kodela, P.G. (1992). Acacia pedleyi (Fabaceae, Mimosoideae), a new species from central-eastern Queensland. Austrobaileya 3 (4): 745.
Tindale, M.D. and Kodela, P.G. (1999). Acacia pedleyi. Flora of Australia Online. Australian Biological Resources Study, Canberra. Accessed 21/06/2012. http://www.environment.gov.au/biodiversity/abrs/online-resources/flora/main/index.html.
Profile author
Lynise Wearne (10/07/2012)

Other resources

The Australasian Virtual Herbarium (AVH)
Atlas of Living Australia

Data source

This profile data is sourced from the QLD Wildlife Data API using the Get species by ID function used under CC-By 4.0
https://apps.des.qld.gov.au/species/?op=getspeciesbyid&taxonid=8381

This information is sourced from the WildNet database managed by the Queensland Department of Environment and Science.

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Licence
Creative Commons Attribution 4.0 International (CC BY 4.0)
Last updated
7 September 2021
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