Difference between revisions of "Lactuca sativa"
Sp. Pl. 2: 795. 1753.
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|place=2: 795. 1753 | |place=2: 795. 1753 | ||
|year=1753 | |year=1753 | ||
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| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=I | ||
| + | |label=Introduced | ||
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|basionyms= | |basionyms= | ||
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|elevation=10–1000 m | |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. | |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 | ||
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Lactuca sativa | name=Lactuca sativa | ||
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|authority=Linnaeus | |authority=Linnaeus | ||
|rank=species | |rank=species | ||
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|publication title=Sp. Pl. | |publication title=Sp. Pl. | ||
|publication year=1753 | |publication year=1753 | ||
| − | |special status= | + | |special status=Introduced |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V19_357.xml |
|tribe=Asteraceae tribe Cichorieae | |tribe=Asteraceae tribe Cichorieae | ||
|genus=Lactuca | |genus=Lactuca | ||
Latest revision as of 19:51, 5 November 2020
Annuals or biennials, (15–)30–70(–100+) cm. Leaves 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. Heads usually in corymbiform, sometimes in paniculiform, arrays. Involucres 8–13+ mm. Phyllaries usually erect in fruit. Florets 7–15(–30+); corollas yellow (sometimes streaked with violet), usually deliquescent. Cypselae: 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. 2n = 18.
Phenology: Flowering mostly Jul–Sep.
Habitat: Disturbed sites, abandoned plantings
Elevation: 10–1000 m
Distribution
Introduced; 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.
Discussion
Selected References
None.