Difference between revisions of "Lactuca floridana"
Fruct. Sem. Pl. 2: 362. 1791.
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| + | |code=E | ||
| + | |label=Endemic | ||
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| + | |basionyms={{Treatment/ID/Basionym | ||
|name=Sonchus floridanus | |name=Sonchus floridanus | ||
|authority=Linnaeus | |authority=Linnaeus | ||
| + | |rank=species | ||
| + | |publication_title=Sp. Pl. | ||
| + | |publication_place=2: 794. 1753 | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Lactuca floridana var. villosa | |name=Lactuca floridana var. villosa | ||
|authority=(Jacquin) Cronquist | |authority=(Jacquin) Cronquist | ||
| + | |rank=variety | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Mulgedium floridanum | |name=Mulgedium floridanum | ||
| − | |authority= | + | |authority= |
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}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Cichorieae;Lactuca;Lactuca floridana | |hierarchy=Asteraceae;Asteraceae tribe Cichorieae;Lactuca;Lactuca floridana | ||
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name=Lactuca floridana | name=Lactuca floridana | ||
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|authority=(Linnaeus) Gaertner | |authority=(Linnaeus) Gaertner | ||
|rank=species | |rank=species | ||
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|publication title=Fruct. Sem. Pl. | |publication title=Fruct. Sem. Pl. | ||
|publication year=1791 | |publication year=1791 | ||
| − | |special status= | + | |special status=Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V19_349.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, 25–150(–200+) cm. Leaves on proximal 2/3–3/4 of each stem; blades of undivided cauline leaves oblong, ovate, or elliptic, margins entire or denticulate, midribs sometimes sparsely pilose. Heads in (± pyramidal) paniculiform arrays. Involucres (8–)10–12+ mm. Phyllaries usually reflexed in fruit. Florets 10–15(–25+); corollas bluish or whitish, seldom deliquescent. Cypselae: bodies brown (often mottled), ± compressed-lanceoloid to -fusiform, 4–5 mm, beaks ± stout, 0.1–0.5(–1) mm, faces 5–6-nerved; pappi white, 4–5 mm. 2n = 34.
Phenology: Flowering (Jun–)Aug–Sep(–Oct).
Habitat: Moist to wet places, margins of thickets and woods
Elevation: 10–200 m
Distribution
Man., Ont., Ala., Ark., Del., D.C., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Md., Mass., Mich., Miss., Mo., Nebr., N.J., N.Y., N.C., Ohio, Okla., Pa., S.C., S.Dak., Tenn., Tex., Va., W.Va., Wis.
Discussion
The “double” pappi of Lactuca floridana (and L. biennis) are very similar to pappi found in species assigned to Cicerbita Wallroth (ca. 35 spp., Europe, Asia, Africa). Return of the species to Cicerbita as C. floridana (Linnaeus) Wallroth may have merit.
Selected References
None.