Lettuce and Other Composite Vegetables

Family: Asteraceae (Compositae)
  • Vincent E. Rubatzky
  • Mas Yamaguchi


The Asteraceae is a widely distributed and very large family of about 800 genera and possibly 20,000 species, of which relatively few are cultivated. The previous family name of Compositae was representative of the composite of many florets typically found in the compact involucrate head. What may appear as a single flower is actually the composite of many individual flowers. Another characteristic of many Asteraceae species is the milklike latex contained in stems and other tissues. Dried latex has some narcotic properties and has been used as a sedative. Lactucarium, the dried latex produced from Lactuca virosa has drug use.


Flower Head Storage Root Globe Artichoke Lettuce Cultivar Lettuce Mosaic Virus 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Selected References

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Copyright information

© Springer Science+Business Media Dordrecht 1997

Authors and Affiliations

  • Vincent E. Rubatzky
    • 1
  • Mas Yamaguchi
    • 1
  1. 1.Department of Vegetable CropsUniversity of CaliforniaDavisUSA

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