Cycas hainanensis 


Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Cycadopsida Cycadales Cycadaceae

Scientific Name: Cycas hainanensis
Species Authority: C.J.Chen
Cycas lingshuigensis G.A.Fu
Cycas shanyaensis G.A.Fu

Assessment Information [top]

Red List Category & Criteria: Endangered A2acd ver 3.1
Year Published: 2010
Date Assessed: 2009-10-31
Assessor(s): Hill, K.D.
Reviewer(s): Donaldson, J.S. & Bösenberg, J.D.
Classified as Endangered based on an estimated population reduction of >50% over the past three generations due to habitat destruction for expanding agriculture and resort developments and the impacts of over-collection.
Previously published Red List assessments:
2003 Endangered (EN)
1998 Vulnerable (V)

Geographic Range [top]

Range Description: This species is known only from the wetter eastern parts of Hainan Island. Occurs from sea level up to 1,200 m.
Countries occurrence:
China (Hainan)
Upper elevation limit (metres): 1200
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: Wild populations are now very restricted, and this species survives mainly in cultivation.
Current Population Trend: Decreasing
Additional data:
Number of mature individuals: 10000
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: This species occurs in tropical jungles and thickets with sparse trees. Plants grow on limestone and volcanic substrate in rainforest. The island is struck by typhoons virtually every year.
Systems: Terrestrial
Generation Length (years): 40

Use and Trade [top]

Use and Trade: Plants are used medicinally to relieve coughing.

Threats [top]

Major Threat(s): Several populations are threatened or have been destroyed by agricultural development and road construction. Logging could also be a threat.

Conservation Actions [top]

Conservation Actions: This species is listed on Appendix II of the CITES Appendices. Plants are protected in some forest reserves and in the Tongguling National Nature Reserve, Wenchang county.

Citation: Hill, K.D. 2010. Cycas hainanensis. The IUCN Red List of Threatened Species 2010: e.T42046A10637082. . Downloaded on 29 November 2015.
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