Lactuca singularis 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Magnoliopsida Asterales Asteraceae

Scientific Name: Lactuca singularis Wilmott
Lactuca grosii Pau & Font Quer
Lactuca perennis ssp. granatensis Charpin & Fern. Casas
Steptorhamphus singularis (Wilmott) Fern. Casas
Taxonomic Notes: L. singularis Wilmott. is a wild relative of lettuce, L. sativa L.

Assessment Information [top]

Red List Category & Criteria: Vulnerable B2ab(iii,v) ver 3.1
Year Published: 2011
Date Assessed: 2010-04-15
Assessor(s): Draper Munt, D.
Reviewer(s): Nieto, A. & Kell, S.P.
Contributor(s): Hargreaves , S. & Kell, S.P.
Lactuca singularis is assessed as Vulnerable because its area of occupancy (AOO) is less than 2,000 km2, its distribution is severely fragmented, and there is continuing decline in the extent and quality of its habitat and in in the number of mature individuals. As it grows at a high altitude it is particularly vulnerable to the effects of climate change.

Geographic Range [top]

Range Description:L. singularis is endemic to southeast Spain (Lebeda et al. 2004). Its area of occupancy (AOO) is less than 2,000 km2.
Countries occurrence:
Spain (Spain (mainland))
Additional data:
Estimated area of occupancy (AOO) - km2:0-2000
Lower elevation limit (metres):1400
Upper elevation limit (metres):2200
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:It is rare, localized and has a fragmented population.
Current Population Trend:Decreasing
Additional data:
Continuing decline of mature individuals:Yes
Population severely fragmented:Yes

Habitat and Ecology [top]

Habitat and Ecology:It is found on rocky slopes on high mountains.

Use and Trade [top]

Use and Trade: L. singularis is a wild relative of and potential gene donor to lettuce, L. sativa.

Threats [top]

Major Threat(s): As this species grows at a high altitude, it is likely to be particularly affected by climate change.

Conservation Actions [top]

Conservation Actions: L. singularis is protected by law in Andalucia and is listed as Vulnerable (VU) in the 2008 Spanish Red List (Moreno 2008). It occurs in protected areas.

No germplasm accessions of L. singularis are reported by EURISCO to be held in European genebanks (EURISCO Catalogue 2010). Germplasm collection and duplicated ex situ storage is a priority for this species.

Citation: Draper Munt, D. 2011. Lactuca singularis. The IUCN Red List of Threatened Species 2011: e.T172180A6844238. . Downloaded on 24 June 2018.
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