Taxon: Lactuca virosa L.

Genus: Lactuca
    Section: Lactuca
Family: Asteraceae (alt.Compositae)
  Subfamily: Cichorioideae
      Tribe: Cichorieae
        Subtribe: Lactucinae
Nomen number: 21375
Place of publication: Sp. pl. 2:795. 1753
Name Verified on: 23-Feb-2009 by ARS Systematic Botanists. Last Changed: 23-Feb-2009
Species priority site is: Western Regional PI Station (W6)
Accessions: 112 in National Plant Germplasm System (GoogleMap)

Common names:

Economic Importance:

  • Gene sources: potential for disease resistance in lettuce (fide Eucarpia Leafy Veg 61-67. 2003)
  • Gene sources: tertiary genetic relative of lettuce (fide Eucarpia Leafy Veg 61-67. 2003)
  • Medicines: folklore (fide Pl Book; CRC MedHerbs ed2; Herbs Commerce ed2)

Distributional Range:


  • Africa

    • Macaronesia: Portugal - Madeira Islands
    • Northern Africa: Algeria; Morocco
  • Europe

    • Middle Europe: Austria; Belgium; Germany; Switzerland
    • Southeastern Europe: Greece; Italy; Macedonia; Romania; Slovenia
    • Southwestern Europe: France; Portugal; Spain

  • Naturalized:

  • Australasia

    • Australia: Australia
    • New Zealand: New Zealand
  • Europe

    • Middle Europe: Netherlands
  • Northern America

    • Southeastern U.S.A.: United States - Alabama, - District of Columbia
    • Southwestern U.S.A.: United States - California

  • Adventive:

  • Europe

    • Middle Europe: Czech Republic; Hungary; Poland
    • Northern Europe: Ireland
    • Southeastern Europe: Croatia


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  • Allan, H. H. B. et al. Flora of New Zealand. 1961- (F NZeal)
  • Botanical Society of the British Isles BSBI taxon database (on-line resource). (BSBI)
  • Clapham, A. R. et al. Flora of the British Isles ed. 2. 1962 (F BritClap)
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  • Feráková, V. 1977. The genus Lactuca in Europe 72-75.
  • FNA Editorial Committee Flora of North America. 1993- (F NAmer)
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  • Foster, S. & C. Hobbs A field guide to Western medicinal plants and herbs. 2002 (W Med Pl Herbs)
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  • Hayes, R. J. & E. J. Ryder 2007. Introgression of novel alleles for partial resistance to big vein disease from Lactuca virosa into cultivated lettuce (HortScience) 42:35-39.
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Check other web resources for Lactuca virosa L. :


  • Fruits: U.S. National Seed Herbarium image