Difference between revisions of "Lactuca hirsuta"
Gen. N. Amer. Pl. 2: 124. 1818.
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|name=Lactuca hirsuta var. albiflora | |name=Lactuca hirsuta var. albiflora | ||
|authority=(Torrey & A. Gray) Shinners | |authority=(Torrey & A. Gray) Shinners | ||
| + | |rank=variety | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Lactuca hirsuta var. sanguinea | |name=Lactuca hirsuta var. sanguinea | ||
|authority=(Bigelow) Fernald | |authority=(Bigelow) Fernald | ||
| + | |rank=variety | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Cichorieae;Lactuca;Lactuca hirsuta | |hierarchy=Asteraceae;Asteraceae tribe Cichorieae;Lactuca;Lactuca hirsuta | ||
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name=Lactuca hirsuta | name=Lactuca hirsuta | ||
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|authority=Muhlenberg ex Nuttall | |authority=Muhlenberg ex Nuttall | ||
|rank=species | |rank=species | ||
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|publication year=1818 | |publication year=1818 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V19_352.xml |
|tribe=Asteraceae tribe Cichorieae | |tribe=Asteraceae tribe Cichorieae | ||
|genus=Lactuca | |genus=Lactuca | ||
Revision as of 20:18, 16 December 2019
Biennials, 15–80(–120) cm. Leaves on proximal 1/3–2/3 of each stem; blades of undivided cauline leaves ± ovate, margins denticulate (sometimes ± ciliate), midribs usually piloso-setose. Heads in corymbiform to paniculiform arrays. Involucres 12–18+ mm. Phyllaries usually reflexed in fruit. Florets 12–24+; corollas usually yellow, sometimes drying bluish, usually deliquescent. Cypselae: bodies brown, ± flattened, elliptic, 4.5–5+ mm, beaks ± filiform, 2.5–3.5 mm, faces 1(–3)-nerved; pappi white, 6.5–8(–10+) mm. 2n = 34.
Phenology: Flowering Jul–Aug(–Sep).
Habitat: Openings in woods
Elevation: 10–100 m
Distribution
N.S., Ont., P.E.I., Que., Ala., Ark., Conn., D.C., Ga., Ill., Ind., Ky., La., Maine, Md., Mass., Mich., Miss., Mo., N.H., N.J., N.Y., N.C., Ohio, Pa., R.I., S.C., Tenn., Tex., Vt., Va., W.Va.
Discussion
The type of Lactuca hirsuta may be conspecific with that of L. graminifolia.
Selected References
None.