Typhonium circinnatum 


Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Liliopsida Arales Araceae

Scientific Name: Typhonium circinnatum
Species Authority: Hett. & J.Mood

Assessment Information [top]

Red List Category & Criteria: Endangered B2ab(iii) ver 3.1
Year Published: 2012
Date Assessed: 2011-11-03
Assessor(s): Nguyen, V.D.
Reviewer(s): Hilton-Taylor, C. & Bilz, M.
Facilitator/Compiler(s): Hilton-Taylor, C.
This is a poorly known species, but based on the information available at present it appears to be confined to two small localities (=locations) fairly near to each other with an area of occupancy of less than 8 km². There is continuing decline in the quality of the habitat at the Cambodian site due to eco-tourism activities. The species is therefore listed as Endangered under criterion B2. However, should future field surveys show that this species is in fact more widespread then it will need reassessment.

Geographic Range [top]

Range Description: Recorded from near Bou Sra waterfall in Pich Chinda district, Mondul Kiri province in Cambodia and Dac Lac in Viet Nam. Occurs at 600 m. It occurs at two location with an area of occupancy of 8 km².
Countries occurrence:
Cambodia; Viet Nam
Estimated area of occupancy (AOO) - km2: 8
Number of Locations: 2
Upper elevation limit (metres): 600
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: Has a very small population. Each subpopulation comprises only several tens of individuals.
Current Population Trend: Decreasing
Additional data:

Habitat and Ecology [top]

Habitat and Ecology: Occurs in wet places in the shade of evergreen broadleaved forest.
Systems: Terrestrial
Continuing decline in area, extent and/or quality of habitat: Yes

Use and Trade [top]

Use and Trade: The species is not known to be used or traded.

Threats [top]

Major Threat(s): In Kirirom, Cambodia, few plants were found near a stream in an area used by tourists. Tourism activities may pose a threat.

Conservation Actions [top]

Conservation Actions: The species does not occur in any protected area.

Classifications [top]

1. Forest -> 1.6. Forest - Subtropical/Tropical Moist Lowland
suitability: Suitable  major importance:Yes
1. Land/water protection -> 1.1. Site/area protection

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
  Occur in at least one PA:No
In-Place Species Management
In-Place Education
6. Human intrusions & disturbance -> 6.1. Recreational activities
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation
  • 2. Species Stresses -> 2.2. Species disturbance

1. Research -> 1.2. Population size, distribution & trends
1. Research -> 1.3. Life history & ecology
1. Research -> 1.5. Threats

Bibliography [top]

IUCN. 2012. IUCN Red List of Threatened Species (ver. 2012.1). Available at: (Accessed: 19 June 2012).

Citation: Nguyen, V.D. 2012. Typhonium circinnatum. The IUCN Red List of Threatened Species 2012: e.T201767A2716557. . Downloaded on 29 November 2015.
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