Lactuca sativa L.
  • Sp. Pl. 2: 795. 1753.


Cite taxon page as 'WFO (2020): Lactuca sativa L. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000128816. Accessed on: 10 Jul 2020'

General Information

Por Robert K. Jansen

Lactuca sativa L., Sp. Pl. 795. 1753.

Hierbas anuales, con savia lechosa; tallos erectos, solitarios o pocos, glabros, 0.3–1 m de alto. Hojas basales o caulinares, roseta basal densa, ovadas u orbiculares, enteras o runcinado-pinnatífidas. Capitulescencias de densas panículas corimbosas; capítulos ligulados, erectos; filarias cilíndricas, con varias series de brácteas caliculadas, imbricadas, las series exteriores más cortas; receptáculos planos y desnudos; flósculos 10–20, perfectos, 5-dentados, amarillos. Aquenios angulados, fusiformes, rostrados, lenticular-oblongos; vilano de numerosas cerdas finas y blancas.

Cultivada para ensaladas; Grijalva 3542, Stevens 23502; especie no conocida en estado silvestre, ampliamente cultivada en todo el mundo. Género con ca 50 especies nativas de Eurasia, Africa y Norteamérica. "Lechuga".

  • Provided by: [D].Flora de Nicaragua
    • Source: [
    • 2
    • ]. 

    Morphology

    Lettuce is annual or biennial

  • Provided by: [C].Plants Of the World Online Portal - FTEA
    • Source: [
    • 1
    • ]. 

    Is widely cultivated as a leaf vegetable, though I have seen no herbarium specimens from our area.

  • Provided by: [C].Plants Of the World Online Portal - FTEA
    • Source: [
    • 1
    • ]. 

    The yellow florets are held in few-flowered capitula, in large paniculate inflorescences

  • Provided by: [C].Plants Of the World Online Portal - FTEA
    • Source: [
    • 1
    • ]. 

    Rosette of sessile, amplexicaul leaves

  • Provided by: [C].Plants Of the World Online Portal - FTEA
    • Source: [
    • 1
    • ]. 

    The pappus 3 mm long.

  • Provided by: [C].Plants Of the World Online Portal - FTEA
    • Source: [
    • 1
    • ]. 

    The involucre is 9–12 mm long

  • Provided by: [C].Plants Of the World Online Portal - FTEA
    • Source: [
    • 1
    • ]. 

    Common Names

    Lettuce

  • Provided by: [C].Plants Of the World Online Portal - FTEA
    • Source: [
    • 1
    • ]. 

     Information From

    Compositae
    CC0 1.0 Universal (CC0 1.0). https://creativecommons.org/publicdomain/zero/1.0
    • A CC0 1.0 Universal (CC0 1.0).
    MBG Floras Images
    http://www.tropicos.org/ImageSearch.aspx
    Flora images. Missouri Botanical Garden. Accessed on Jun. 2018.
    • B Missouri Botanical Garden
    Plants Of the World Online Portal - FTEA
    https://www.kew.org/science/who-we-are-and-what-we-do/strategic-outputs-2020/plants-of-the-world-online
    http://www.plantsoftheworldonline.org/terms-and-conditions
    • C
    Flora de Nicaragua
    http://www.tropicos.org/projectwebportal.aspx?projectid=7&pagename=Home&langid=66
    WD Stevens, CU Ulloa, A Pool and OM Montiel. Missouri Botanical Garden Press, 2001
    • D Missouri Botanical Garden
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • E CC0 1.0 Universal (CC0 1.0).