Genus Lactuca L.


Summary
Genus number:
6451
Last updated:
13 January 2011
Family:
Asteraceae (alt. Compositae)
Subfamily:
Tribe:
Subtribe:
Common name(s):

lettuce
Accession count:

3638 (3058  active, 1389  available) in National Plant Germplasm System
Comments:



Images (12 total. Click on image for more.)
Fruits


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References:
  1. Koopman, W. J. M. et al. 1998. Phylogenetic relationships among Lactuca (Asteraceae) species and related genera based on ITS-1 DNA sequences. Amer. J. Bot. 85:1517-1530.
  2. Koopman, W. J. M. et al. 2001. Species relationships in Lactuca s.l. (Lactuceae, Asteraceae) inferred from AFLP fingerprints. Amer. J. Bot. 88:1881-1887.
  3. Lebeda, A. et al. 2004. Geographical distribution of wild Lactuca species (Asteraceae, Lactuceae). Bot. Rev. (Lancaster) 70:328-356.
  4. Lebeda, A. et al. 2019. Chapter 5. Wild Lactuca species in North America. In: Green, S. L. et al., North American crop wild relatives. Volume 2. Important species. 131-194.
  5. Lebeda, A. et al. 2019. Research gaps and challenges in the conservation and use of North American wild lettuce germplasm. Crop Sci. (Madison) 59:2337-2356.
  6. Wang, Z.-H. et al. 2013. Molecular phylogeny of the Lactuca alliance (Cichorieae subtribe Lactucinae, Asteraceae) with focus on their Chinese centre of diversity detects potential events of reticulation and chloroplast capture. PLoS One 8(12): e82692.
  7. Wei, Z. et al. 2017. Phylogenetic relationships within Lactuca L. (Asteraceae), including African species, based on chloroplast DNA sequence comparisons. Genet. Resources Crop Evol. 64:55-71.
Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2026. Germplasm Resources Information Network (GRIN Taxonomy). National Germplasm Resources Laboratory, Beltsville, Maryland.
URL: https://npgstest.ars-grin.gov/gringlobal/taxon/taxonomygenus?id=6451. Accessed 11 May 2026.