View source for Lactuca sativa

{{Treatment/ID
|accepted_name=Lactuca sativa
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=2: 795. 1753
|year=1753
}}
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Cichorieae;Lactuca;Lactuca sativa
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Cichorieae]]</div><div class="higher-taxon"><small>genus</small>[[Lactuca]]</div><div class="higher-taxon"><small>species</small>[[Lactuca sativa]]</div></div>
|volume=Volume 19
|mention_page=page 260
|treatment_page=page 263
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Annuals </b>or biennials, (15–)30–70(–100+) cm. <b>Leaves</b> on proximal 1/2–3/4 of each stem; blades of undivided cauline leaves ovate to orbiculate, margins entire or denticulate, seldom prickly, midribs rarely prickly-setose. <b>Heads</b> usually in corymbiform, sometimes in paniculiform, arrays. <b>Involucres</b> 8–13+ mm. <b>Phyllaries</b> usually erect in fruit. <b>Florets</b> 7–15(–30+); corollas yellow (sometimes streaked with violet), usually deliquescent. <b>Cypselae</b>: bodies pale grayish to whitish or tan, ± flattened, obovate, 3–4 mm, beaks ± filiform, 3–5 mm, faces 5–9-nerved; pappi white, 3.5–4+ mm. <b>2n</b> = 18.</span><!--

-->{{Treatment/Body
|phenology=Flowering mostly Jul–Sep.
|habitat=Disturbed sites, abandoned plantings
|elevation=10–1000 m
|distribution=Ont.;Ala.;Calif.;Conn.;Del.;D.C.;Idaho;Ill.;Ind.;Maine;Mass.;Mich.;Mo.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Oreg.;Pa.;R.I.;Vt.;Wash.;W.Va.;Eurasia;introduced also in Mexico;introduced or ephemeral nearly worldwide.
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Lactuca sativa
|author=
|authority=Linnaeus
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Asteraceae
|phenology=Flowering mostly Jul–Sep.
|habitat=Disturbed sites, abandoned plantings
|elevation=10–1000 m
|distribution=Ont.;Ala.;Calif.;Conn.;Del.;D.C.;Idaho;Ill.;Ind.;Maine;Mass.;Mich.;Mo.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Oreg.;Pa.;R.I.;Vt.;Wash.;W.Va.;Eurasia;introduced also in Mexico;introduced or ephemeral nearly worldwide.
|introduced=true
|reference=None
|publication title=Sp. Pl.
|publication year=1753
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V19_357.xml
|tribe=Asteraceae tribe Cichorieae
|genus=Lactuca
|species=Lactuca sativa
}}<!--

-->[[Category:Treatment]][[Category:Lactuca]]