Difference between revisions of "Lactuca saligna"
Sp. Pl. 2: 796. 1753.
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|publication year=1753 | |publication year=1753 | ||
|special status=Introduced | |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_355.xml |
|tribe=Asteraceae tribe Cichorieae | |tribe=Asteraceae tribe Cichorieae | ||
|genus=Lactuca | |genus=Lactuca | ||
Latest revision as of 19:51, 5 November 2020
Annuals (perhaps persisting), 15–70(–100+) cm. Leaves on proximal 1/2–3/4+ of each stem; blades of undivided cauline leaves ± linear to filiform, margins entire or denticulate, midribs usually prickly-setose. Heads in racemiform to spiciform arrays. Involucres 6–9(–13+) mm. Phyllaries usually erect in fruit. Florets 6–12(–20+); corollas yellow (sometimes abaxially bluish), usually deliquescent. Cypselae: bodies pale brown, ± flattened, elliptic to oblanceolate, 2.5–3.5 mm, beaks ± filiform, (2–)5–6 mm, faces 5–7-nerved; pappi white, 5–6 mm. 2n = 18.
Phenology: Flowering Aug–Oct.
Habitat: Disturbed sites
Elevation: 10–1500 m
Distribution
Introduced; Ont., Que., Ala., Ariz., Ark., Calif., Del., D.C., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Mo., Nebr., Nev., N.J., N.Mex., N.Y., N.C., Ohio, Okla., Oreg., Pa., S.C., Tenn., Tex., Va., Wash., W.Va., Wis., Europe, introduced also in Mexico.
Discussion
Selected References
None.