Cycas hainanensis 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Cycadopsida Cycadales Cycadaceae

Scientific Name: Cycas hainanensis 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:

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)
Additional data:
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.
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 24 April 2018.
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