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Euphorbia greenwayi var. greenwayi 

Scope: Global
Language: English
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Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Magnoliopsida Malpighiales Euphorbiaceae

Scientific Name: Euphorbia greenwayi P.R.O.Bally & S.Carter var. greenwayi
Parent Species:

Assessment Information [top]

Red List Category & Criteria: Critically Endangered B1ab(iii)+2ab(iii) ver 3.1
Year Published: 2013
Date Assessed: 2013-03-21
Assessor(s): IUCN SSC East African Plants Red List Authority
Reviewer(s): Hilton-Taylor, C. & Scott, J.A.
Contributor(s): Luke, Q., Bangirinama, F., Beentje, H.J., Gereau, R., Hemp, A., Kabuye, C., Kindeketa, W., Malombe, I., Maunder, M., Mwachala, G., Mwangoka, M. & Ndangalasi, H.
Justification:
Due to single location and ongoing threat, we assess this taxon as Critically Endangered.

Geographic Range [top]

Range Description:Three collections from three localities, collected 1969-1990 on Iringa Escarpment.
Countries occurrence:
Native:
Tanzania, United Republic of
Additional data:
Estimated area of occupancy (AOO) - km2:3
Number of Locations:1
Lower elevation limit (metres):1000
Upper elevation limit (metres):1250
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:

There is no information on size or extent of populations. 

Current Population Trend:Unknown
Additional data:

Habitat and Ecology [top]

Habitat and Ecology:The inferred habitat of this taxon is Miombo woodland, and probably rocky outcrops within this type.
Systems:Terrestrial
Continuing decline in area, extent and/or quality of habitat:Yes

Threats [top]

Major Threat(s): Habitat quality in the southern locations is declining due to harvesting of woodland products near Iringa town: firewood, charcoal (which impacts the whole habitat) and the digging up of plants. The occurrence in Lunda-Mkwabi Game Controlled Area is not necessarily that of a protected area - this might have been degazetted.

Classifications [top]

1. Forest -> 1.5. Forest - Subtropical/Tropical Dry
suitability:Suitable season:resident major importance:Yes

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
In-Place Species Management
In-Place Education
5. Biological resource use -> 5.2. Gathering terrestrial plants -> 5.2.2. Unintentional effects (species is not the target)
♦ timing:Ongoing ♦ scope:Whole (>90%) ♦ severity:Slow, Significant Declines ⇒ Impact score:Medium Impact: 7 
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation
  • 2. Species Stresses -> 2.1. Species mortality
  • 2. Species Stresses -> 2.2. Species disturbance

Bibliography [top]

Carter, S. and Radcliffe-Smith, A. 1988. Euphorbiaceae, Part II. In: R.M. Polhill (ed.) Flora of Tropical East Africa. Royal Botanic Gardens, Kew.

IUCN. 2013. IUCN Red List of Threatened Species (ver. 2013.2). Available at: http://www.iucnredlist.org. (Accessed: 13 November 2013).


Citation: IUCN SSC East African Plants Red List Authority. 2013. Euphorbia greenwayi var. greenwayi. The IUCN Red List of Threatened Species 2013: e.T47348564A47348567. . Downloaded on 16 December 2017.
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