Stylochaeton bogneri 


Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Liliopsida Arales Araceae

Scientific Name: Stylochaeton bogneri
Species Authority: Mayo
Stylochiton bogneri Mayo [orth. error]

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(iii)+2ab(iii) ver 3.1
Year Published: 2009
Date Assessed: 2006-03-04
Assessor(s): Eastern Arc Mountains & Coastal Forests CEPF Plant Assessment Project
Reviewer(s): Beentje, H., Gereau, R., Kabuye, C., Kalema, J., Luke, Q., Lyaruu, H., Maunder, M., Mwachala, G., Ndangalasi, H., Njau, F. & Schatz, G. (East African Plants Red List Authority)
The extent of occurrence is less than 5,000 km² and the area of occupancy is less than 100 km², the population is severely fragmented and there is continuing decline due to ongoing habitat loss and degradation, hence is listed as Endangered.

Geographic Range [top]

Range Description: Recorded from southern Kenya and northern Tanzania; has a fairly restricted range.
Countries occurrence:
Kenya; Tanzania, United Republic of
Estimated area of occupancy (AOO) - km2: 99
Number of Locations: 9
Lower elevation limit (metres): 140
Upper elevation limit (metres): 1200
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: Is locally common.
Current Population Trend: Decreasing
Additional data:
Population severely fragmented: Yes

Habitat and Ecology [top]

Habitat and Ecology: A perennial herb in coastal evergreen forest on limestone outcrops and also recorded in Brachystegia woodland. One location was said to be heavily denuded.
Systems: Terrestrial
Continuing decline in area, extent and/or quality of habitat: Yes

Use and Trade [top]

Use and Trade: May be used locally for medicinal purposes, and is grown as an ornamental in some gardens in the USA.

Threats [top]

Major Threat(s): Ongoing habitat loss due to expanding agriculture and clearance of woodland for charcoal burning.

Conservation Actions [top]

Conservation Actions: Has been recorded from some protected areas: (in or near) Mailujanji Forest Reserve, Shimba Hills Nature Reserve, Kwamngumi Forest Reserve and Segoma Forest Reserve.

Classifications [top]

1. Forest -> 1.5. Forest - Subtropical/Tropical Dry
suitability: Suitable  major importance:Yes
2. Savanna -> 2.1. Savanna - Dry
suitability: Suitable  major importance:Yes

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
  Occur in at least one PA:Yes
In-Place Species Management
In-Place Education
2. Agriculture & aquaculture -> 2.1. Annual & perennial non-timber crops -> 2.1.2. Small-holder farming
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 2. Species Stresses -> 2.1. Species mortality

5. Biological resource use -> 5.3. Logging & wood harvesting -> 5.3.3. Unintentional effects: (subsistence/small scale)
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

♦  Medicine - human & veterinary
 Local : ✓ 

♦  Pets/display animals, horticulture
 International : ✓ 

Bibliography [top]

IUCN. 2009. IUCN Red List of Threatened Species (ver. 2009.2). Available at: (Accessed: 3 November 2009).

Mayo, S.J. 1985. Araceae. In: R.M. Polhill (ed.), Flora of Tropical East Africa. A.A. Balkema, Rotterdam.

Citation: Eastern Arc Mountains & Coastal Forests CEPF Plant Assessment Project. 2009. Stylochaeton bogneri. The IUCN Red List of Threatened Species 2009: e.T158336A5196133. . Downloaded on 01 December 2015.
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