Overview

Distribution

Range Description

This species occurs in eastern New South Wales, Australia from just south of Taree on the north coast, continuing in a southerly direction to Bega on the south coast. Occurs from near sea level up to 300 m.
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Plants are locally abundant in wet to dry sclerophyll forests, mostly on old beach sands but also on shallow sandy or stony soils on ridges. Strictly near-coastal in the north of the range but extending to the foothills of coastal ranges in the south.

Systems
  • Terrestrial
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2010

Assessor/s
Hill, K.D.

Reviewer/s
Donaldson, J.S. & Bösenberg, J.D.

Contributor/s

Justification
Very common across its wide range and the threats are not significant enough to warrant any concern, hence this species is listed as Least Concern.

History
  • 2003
    Least Concern
    (IUCN 2003)
  • 2003
    Least Concern
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Population

Population
This species occurs in numerous subpopulations along the east coast of New South Wales. Several of these subpopulations comprise thousands of plants.

Population Trend
Decreasing
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Threats

Major Threats
Urban and rural land development has had an affect on certain subpopulations.
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Management

Conservation Actions

Conservation Actions
This species is listed on Appendix I of the CITES Appendices. Some subpopulations occur in National Parks, State Forests or on vacant Crown Land.
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Wikipedia

Macrozamia communis

Macrozamia communis is an Australian cycad found on the east coast of New South Wales. The common name for the species is burrawang, a word derived from the Daruk Australian Aboriginal language; this name is also often applied to other species of Macrozamia.

The burrawang has the most extensive distribution of any cycad in New South Wales and is found along the coast from the district around Armidale, New South Wales to Bega 700 km south and on the coastal slopes of the Great Dividing Range with some instances on the inland slopes of the range; as far west as the Mudgee district. It is most abundant on the south coast of the state.[2]

The plants grow in open forests.[3]

Burrawang seeds, Batemans Bay, New South Wales, Australia

Seed cones are formed after fire. Male and female seed cones are on separate plants and the large female seeds are ripe when red or yellow.[3]

Individual specimens take 10-20 years to mature and may live for up to 120 years.[4]

Seedlings of Macrozamia communis have a tuber and coralloid roots that rise up above the ground containing cyanobacteria. These exist in a symbiotic relationship with the cycad by nitrogen fixation.[4]

The seeds of the burrawang are a good source of starch but are poisonous to eat unless treated. The Cadigal people pounded and soaked the seeds in water for a week, changing the water daily. The pulp was then made into cakes and roasted over hot embers.[5]

The conservation status of the species is "not considered to be at risk".[6]

References[edit]

  1. ^ Hill (2003). Macrozamia communis. 2006. IUCN Red List of Threatened Species. IUCN 2006. www.iucnredlist.org. Retrieved on 12 May 2006.
  2. ^ Kennedy, P. (1993). "Macrozamia communis". Cycads. Palm and Cycad Societies of Australia (PACSOA). Retrieved 2006-04-30. 
  3. ^ a b "Burrawang". Australian Aboriginal ethnobotany. Australian National Botanic Gardens. 2003. Retrieved 2006-04-30. 
  4. ^ a b Benson, Doug; McDougall, Lyn (1993). "Ecology of Sydney Plant Species Part 1: Ferns, fern-allies, cycads, conifers and dicotyledon families Acanthaceae to Asclepiadaceae". Cunninghamia 3 (2): 257–422 [336]. 
  5. ^ "Aboriginal bush foods". Botanical information - Botanic Gardens Trust - Sydney, Australia. Department of Environment and Conservation (NSW). Retrieved 2006-04-30. 
  6. ^ Hill, K. (2004). "Macrozamia communis". The Cycad Pages. Royal Botanic Gardens Sydney. Retrieved 2006-04-30. 
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