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Cycas inermis 

Scope: Global
Language: English
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Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Cycadopsida Cycadales Cycadaceae

Scientific Name: Cycas inermis Lour.
Taxonomic Notes: The Portuguese colonial explorer Joao de Loureiro described Cycas inermis in 1790 on the basis of plants he observed and collected in the French territory of Cochinchina (southern third of present-day Viet Nam).

Assessment Information [top]

Red List Category & Criteria: Vulnerable A2acd ver 3.1
Year Published: 2010
Date Assessed: 2009-10-31
Assessor(s): Nguyen, H.T.
Reviewer(s): Donaldson, J.S. & Bösenberg, J.D.
Justification:
It is estimated that habitat destruction has reduced the area of occupancy and number of individuals by >30% over the past 50 years (three generations is 120 years, and prior to 50 years ago the population is assumed to have been stable, hence the reduction is 30% over three generations) . The species is also popular for landscaping so many plants are being removed from the wild.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species is widely distributed on the near-coastal ranges in central and southern Viet Nam, from near Da Nang, to Khanh Hoa province and south to Nam Cat Tien National Park.
Countries occurrence:
Native:
Viet Nam
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This is a locally common species.
Current Population Trend:Decreasing
Additional data:
Number of mature individuals:10000
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:Locally common in closed evergreen or semideciduous forests on flat or elevated sites on granite, metamorphic or basaltic volcanic substrates. C. inermis often grows on steep slopes or local slight stony rises where the drainage would be greater.
Systems:Terrestrial
Generation Length (years):40

Threats [top]

Major Threat(s): This species is threatened by habitat destruction and also by removal from the wild because it is a popular landscaping plant .

Conservation Actions [top]

Conservation Actions: This species is listed on Appendix II of the CITES Appendices. Plants occur in the Nam Cat Thien National Park.

Citation: Nguyen, H.T. 2010. Cycas inermis. The IUCN Red List of Threatened Species 2010: e.T42055A10640187. . Downloaded on 22 May 2018.
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