Macrozamia crassifolia 


Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Cycadopsida Cycadales Zamiaceae

Scientific Name: Macrozamia crassifolia
Species Authority: P.I.Forst. & D.L.Jones

Assessment Information [top]

Red List Category & Criteria: Vulnerable B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v) ver 3.1
Year Published: 2010
Date Assessed: 2009-10-31
Assessor(s): Forster, P.
Reviewer(s): Donaldson, J.S.; Bösenberg, J.D.
Locally common but qualifies as Vulnerable based on relatively small extent of occurrence ( mapped as 160 km²) and occurrence at no more than ten locations. There has been an estimated population decline of 10-20% over the last fifty years.
Previously published Red List assessments:
2003 Vulnerable (VU)
1998 Rare (R)

Geographic Range [top]

Range Description: This species occurs in two small disjunct areas in the vicinity of Eidsvold and Mundubbera in Queensland, Australia. Found at 340 to 420 m asl.
Countries occurrence:
Australia (Queensland)
Number of Locations: 10
Lower elevation limit (metres): 340
Upper elevation limit (metres): 420
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: This species is locally common, with strong seedling recruitment. There are at least ten subpopulations.
Current Population Trend: Decreasing
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: This species grows among granite boulders on rugged slopes with open eucalypt forest which has a sparse under-storey.
Systems: Terrestrial
Generation Length (years): 60

Threats [top]

Major Threat(s): All plants are on private land and occur within two restricted areas. The reasons for the decline are not known.

Conservation Actions [top]

Conservation Actions: This species is listed on Appendix II of the CITES Appendices.

Citation: Forster, P. 2010. Macrozamia crassifolia. The IUCN Red List of Threatened Species 2010: e.T41962A10585795. . Downloaded on 29 November 2015.
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