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Scirpus bicolor

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Taxonomy [top]

Kingdom Phylum Class Order Family
PLANTAE TRACHEOPHYTA LILIOPSIDA CYPERALES CYPERACEAE

Scientific Name: Scirpus bicolor
Species Authority: (Carmich.) Spreng.
Taxonomic Notes: Synonym = Isolepis bicolor Carmich.

This is an extremely variable species; Hooper (1968) discriminates two varieties. Many more taxa were described by earlier authors but are unlikely to be of taxonomic value.

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2003
Date Assessed: 2003-04-30
Annotations:
Needs updating
Assessor(s): Jakubowsky, G. (University of Vienna, Institute of Botany)
Reviewer(s): Cronk, Q. & Cairns-Wicks, R. (South Atlantic Island Plants Red List Authority)
Justification:
The species is widespread and common on all four islands: Tristan da Cunha, Inaccessible Island, Nightingale Island, Gough Island. (literature, collections at K and BM, personal observations).

Geographic Range [top]

Range Description: Endemic to Tristan da Cunha (Tristan da Cunca, Inaccessible Island, Nightingale Island, Gough Island). Extent of occurrence c. 160 km², area of occupancy only slightly less. The species is common and occurs almost continuously on all four islands.
Countries:
Native:
Saint Helena, Ascension and Tristan da Cunha (Tristan da Cunha)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population Trend: Stable

Habitat and Ecology [top]

Habitat and Ecology: The species is common in most plant associations: Blechnum palmiforme heath, Blechnum penna-marina heath, Phylica arborea woodland, also on bare soil and colonizing the lava of the 1961 eruption on the main island.
Systems: Terrestrial

Conservation Actions [top]

Conservation Actions: Gough Island is a World Heritage Site since 1995, Inaccessible Island is a Nature Reserve.

Citation: Jakubowsky, G. (University of Vienna, Institute of Botany) 2003. Scirpus bicolor. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 30 September 2014.
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