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Euphorbia tetracanthoides 

Scope: Global
Language: English
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Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Magnoliopsida Euphorbiales Euphorbiaceae

Scientific Name: Euphorbia tetracanthoides Pax

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v) 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:
The probable loss of the eastern populations (with resulting decline in extent of occurrence, area of occupancy, extent of habitat, number of subpopulations and number of mature individuals) makes this taxon Endangered.

Geographic Range [top]

Range Description:Seven collections from seven localities in southern Tanzania, collected between 1931-1990.
Countries occurrence:
Native:
Tanzania, United Republic of
Additional data:
Estimated area of occupancy (AOO) - km2:59.9Continuing decline in area of occupancy (AOO):Yes
Estimated extent of occurrence (EOO) - km2:986.7
Continuing decline in extent of occurrence (EOO):Yes
Number of Locations:3Continuing decline in number of locations:Unknown
Lower elevation limit (metres):1770
Upper elevation limit (metres):2200
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:Succulent forming clumps over rocks
Systems:Terrestrial
Continuing decline in area, extent and/or quality of habitat:Yes

Use and Trade [top]

Use and Trade:

There is no information on any use or trade.

Threats [top]

Major Threat(s): Urbanization around Njombe will most likely have made the entire subpopulation there disappear since it was last collected there in 1958. The western subpopulation, partially protected in Mpanga/Kipengere Game Reserve, should be safe within its habitat.

Conservation Actions [top]

Conservation Actions:

There are no conservation actions in place.


Citation: IUCN SSC East African Plants Red List Authority. 2013. Euphorbia tetracanthoides. The IUCN Red List of Threatened Species 2013: e.T47348596A47348599. . Downloaded on 22 November 2017.
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