View source for Lactuca serriola

{{Treatment/ID
|accepted_name=Lactuca serriola
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Cent. Pl. II,
|place=29. 1756
|year=1756
}}
|special_status={{Treatment/ID/Special_status
|code=I
|label=Introduced
}}{{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Cichorieae;Lactuca;Lactuca serriola
|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 serriola]]</div></div>
|volume=Volume 19
|mention_page=page 260
|treatment_page=page 262
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Annuals </b>(perhaps persisting), (15–)30–70(–100+) cm. <b>Leaves</b> on proximal 1/2–3/4 of each stem; blades of undivided cauline leaves usually ± oblong, sometimes obovate to lanceolate, margins denticulate, usually prickly, midribs usually prickly-setose, rarely smooth. <b>Heads</b> in paniculiform arrays. <b>Involucres</b> 9–10(–12) mm. <b>Phyllaries</b> usually reflexed in fruit. <b>Florets</b> 12–20; corollas yellow, usually deliquescent. <b>Cypselae</b>: bodies pale grayish to tan, ± flattened, oblanceolate, 2.5–3.5 mm, beaks ± filiform, 2.5–4 mm, faces (3–)5–9-nerved; pappi white, (3–)4–5 mm. <b>2n</b> = 18.</span><!--

-->{{Treatment/Body
|phenology=Flowering (May–)Jul–Sep(–Oct).
|habitat=Roadsides, disturbed sites
|elevation=10–2300 m
|distribution=Alta.;B.C.;Man.;N.B.;N.S.;Ont.;P.E.I.;Que.;Sask.;Ala.;Ariz.;Ark.;Calif.;Colo.;Conn.;Del.;D.C.;Fla.;Ga.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Mont.;Nebr.;Nev.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Oreg.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo.;Europe;also introduced nearly worldwide.
|introduced=true
|discussion=<p>The name <i>Lactuca</i> scariola Linnaeus is evidently illegitimate; it is a superfluous name based on the same type as <i>L. serriola</i>. Plants included here in <i>L. serriola</i> with most leaf blades obovate to lanceolate (not lobed) and lacking prickles on midribs have been called L. scariola subsp. or var. integrata or <i>L. serriola</i> forma integrifolia or <i>L. serriola</i> var. integrata.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Lactuca serriola
|authority=Linnaeus
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Asteraceae
|phenology=Flowering (May–)Jul–Sep(–Oct).
|habitat=Roadsides, disturbed sites
|elevation=10–2300 m
|distribution=Alta.;B.C.;Man.;N.B.;N.S.;Ont.;P.E.I.;Que.;Sask.;Ala.;Ariz.;Ark.;Calif.;Colo.;Conn.;Del.;D.C.;Fla.;Ga.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Mont.;Nebr.;Nev.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Oreg.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo.;Europe;also introduced nearly worldwide.
|introduced=true
|reference=None
|publication title=Cent. Pl. II,
|publication year=1756
|special status=Introduced;Illustrated
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V19_356.xml
|tribe=Asteraceae tribe Cichorieae
|genus=Lactuca
|species=Lactuca serriola
}}<!--

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