Overview
Distribution
Range Description
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Range Description
Knowledge of the national distribution of this species is as follows:
- Slovakia: scattered across the whole country except for the northern-most regions (Dostál and Červenka 1992).
- Czech Republic: Vulnerable (Holub and Procházka 2000).
- Hungary: North Hungarian Mountains (Gömör-Torna Karst region, Sátor mountain, Bükk-mountain, Mátra mountain, Karancs, Cserhát mountain), Transdanubian Mountains (Visegrád-mountain, Pilis-mountain, Buda-mountain, Gerecse-mountain, Velence-mountain, Várpalota) and Western Transdanubia (Sopron) (Soó 1966, Simon 1992).
- France: widespread; occurs in the majority of departments except for nine departments to the northwest, Haut-Rhin and Territoire de Belfort to the east, Creuse and Haute-Vienne in central France, Landes and Gers in the southwest, and Corsica (Association Tela Botanica 2000–2010).
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Ecology
Habitat
Habitat and Ecology
Systems
- Terrestrial
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Habitat and Ecology
Systems
- Terrestrial
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Molecular Biology and Genetics
Molecular Biology
Barcode data: Lactuca perennis
No available public DNA sequences.
Download FASTA File
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Statistics of barcoding coverage: Lactuca perennis
Public Records: 1
Specimens with Barcodes: 1
Species With Barcodes: 1
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Conservation
Conservation Status
IUCN Red List Assessment
Red List Category
Red List Criteria
Version
Year Assessed
Assessor/s
Reviewer/s
Contributor/s
Justification
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IUCN Red List Assessment
Red List Category
Red List Criteria
Version
Year Assessed
Assessor/s
Reviewer/s
Contributor/s
Justification
EU 27 regional assessment: Data Deficient (DD)
Lactuca perennis is assessed as Data Deficient as there is currently insufficient information available to evaluate this species. Information about its precise distribution, population size and trend is needed, as well as its in situ conservation status and potential threats.
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Trends
Population
Population Trend
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Population
Population Trend
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Threats
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Management
Conservation Actions
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.
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Conservation Actions
L. perennis ssp. granatensis Charpin & Fern. Casas is listed as Vulnerable (VU) in Spain (Moreno 2008).
The species is known to occur in protected areas. It is recommended that the monitoring and management of this species is incorporated into the existing management plans of these sites.
EURISCO reports 33 germplasm accessions of L. perennis held in European genebanks, 27 of which are reported to be of wild or weedy origin. Of the wild accessions, 12 originate from within Europe. Three of these originate from France (stored in Centre for Genetic Resources, the Netherlands Plant Research International, Netherlands), six originate from Germany (stored in Genebank, Leibniz Institute of Plant Genetics and Crop Plant Research, Germany) and three originate from Switzerland (two of which are stored in Centre for Genetic Resources, the Netherlands Plant Research International, Netherlands and one is stored in Genebank Department - Vegetable Section Olomouc, RICP Prague, Czech Republic) (EURISCO Catalogue 2010).
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Wikipedia
Lactuca perennis
Lactuca perennis, common names: Blue Lettuce or Perennial lettuce, is a perennial herbaceous plant species belonging to the genus Lactuca of the Asteraceae family.
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Description
Lactuca perennis reaches on average 60 centimetres (24 in) of height, with a minimum height of 20 centimetres (7.9 in). This plant is glabrous, the stems is erect and branched, leaves are greyish-green, the lower ones with a small petioles, the upper ones partly amplexicaul. It is hermaphrodite and entomophilous. The flowers are violet-blue, with a size of 30–40 millimetres (1.2–1.6 in). The flowering period extends from April through August and the seeds ripen from July until September.
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Distribution
It is present in most of the Central and Southern Europe.
Habitat
These plants prefer calcareous well-drained soils and they are common on sunny rocky soils, on dry meadows, on roadsides and on banks of rivers. They can be found on average at 500–2,000 metres (1,600–6,600 ft) above sea level.
Medicinal properties
This wild lettuce has an abundant white latex (hence the Latin name lactuca of the species, meaning milk) containing the substance "lactucarium" with many medicinal properties. It is especially useful as sedative, but the plant should be used with caution.
References
- Pignatti S. - Flora d'Italia - Edagricole – 1982. vol. III
- Medicinal Herbs
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