Euphorbia bulbispina 


Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Magnoliopsida Euphorbiales Euphorbiaceae

Scientific Name: Euphorbia bulbispina
Species Authority: Rauh & Razaf.

Assessment Information [top]

Red List Category & Criteria: Vulnerable D2 ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Needs updating
Assessor(s): Haevermans, T.
Reviewer(s): Rajeriarison, C., Labat, J.N., Lowry, P. & Randrianjohany, E. (Madagascar Plants RLA)
This species is known only from the summit of Windsor Castle and surroundings rocks (Rauh 1998), although It may also be present on the rocks of the Montagne des Francais, further South. The exact extent of occurrence and area of occupancy is not known but E. bulbispina is likely to be restricted to a very small area, outside any protected areas. It thus qualifies for VU D2.

Geographic Range [top]

Range Description: Northern Madagascar (Antsiranana district): Windsor-Castle (Bobaomby) and surroundings, where it is locally abundant on the rocky summits.
Countries occurrence:
Range Map: Click here to open the map viewer and explore range.

Habitat and Ecology [top]

Habitat and Ecology: Found in rock cracks.
Systems: Terrestrial

Threats [top]

Major Threat(s): Habitat degradation, fire, collection for the horticultural trade.

Conservation Actions [top]

Conservation Actions: Listed under CITES Appendix II.

Classifications [top]

0. Root -> 6. Rocky areas (eg. inland cliffs, mountain peaks)
suitability: Suitable  
1. Land/water protection -> 1.1. Site/area protection
2. Land/water management -> 2.1. Site/area management
3. Species management -> 3.4. Ex-situ conservation -> 3.4.1. Captive breeding/artificial propagation
3. Species management -> 3.4. Ex-situ conservation -> 3.4.2. Genome resource bank
4. Education & awareness -> 4.1. Formal education
4. Education & awareness -> 4.3. Awareness & communications

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 -> 5.2.1. Intentional use (species is the target)
♦ timing: Ongoing    
→ Stresses
  • 2. Species Stresses -> 2.1. Species mortality

7. Natural system modifications -> 7.1. Fire & fire suppression -> 7.1.3. Trend Unknown/Unrecorded
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

1. Research -> 1.1. Taxonomy
1. Research -> 1.2. Population size, distribution & trends
1. Research -> 1.3. Life history & ecology
1. Research -> 1.5. Threats
1. Research -> 1.6. Actions
3. Monitoring -> 3.1. Population trends

Bibliography [top]

IUCN. 2004. 2004 IUCN Red List of Threatened Species. Downloaded on 23 November 2004.

Rauh, W. 1995. Succulent and Xerophytic plants of Madagascar. Vol I. Strawberry Press, Mill Valley.

Citation: Haevermans, T. 2004. Euphorbia bulbispina. The IUCN Red List of Threatened Species 2004: e.T44313A10889250. . Downloaded on 28 November 2015.
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