Difference between revisions of "Helenium microcephalum"
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 667. 1836.
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{{Treatment/ID | {{Treatment/ID | ||
|accepted_name=Helenium microcephalum | |accepted_name=Helenium microcephalum | ||
− | |accepted_authority= | + | |accepted_authority=de Candolle |
|publications={{Treatment/Publication | |publications={{Treatment/Publication | ||
|title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. | |title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. | ||
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-->{{Treatment/Body | -->{{Treatment/Body | ||
− | |distribution= | + | |distribution=Ariz.;N.Mex.;Okla.;Tex.;n Mexico. |
|discussion=<p>Varieties 2 (2 in the flora).</p> | |discussion=<p>Varieties 2 (2 in the flora).</p> | ||
|tables= | |tables= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Helenium microcephalum | name=Helenium microcephalum | ||
− | + | |authority=de Candolle | |
− | |authority= | ||
|rank=species | |rank=species | ||
|parent rank=genus | |parent rank=genus | ||
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|basionyms= | |basionyms= | ||
|family=Asteraceae | |family=Asteraceae | ||
− | |distribution= | + | |distribution=Ariz.;N.Mex.;Okla.;Tex.;n Mexico. |
|reference=None | |reference=None | ||
|publication title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. | |publication title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. | ||
|publication year=1836 | |publication year=1836 | ||
|special status= | |special status= | ||
− | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V21_1086.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Gaillardiinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Gaillardiinae | ||
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}}<!-- | }}<!-- | ||
− | -->[[Category:Treatment]][[Category:Helenium]] | + | --> |
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+ | [[Category:Treatment]] | ||
+ | [[Category:Helenium]] | ||
+ | [[Category:Revised Since Print]] |
Latest revision as of 18:31, 6 November 2020
Annuals, 25–120 cm. Stems 1(2–10), branched distally, moderately to strongly winged, glabrous or sparsely hairy. Leaves glabrous or sparsely to moderately hairy (basal withered by flowering); proximal and mid blades narrowly elliptic to narrowly oblong-elliptic, usually serrate to undulate-serrate, sometimes deeply toothed or laciniate; distal blades narrowly elliptic to narrowly oblong-elliptic, serrate to undulate-serrate. Heads 20–300+ per plant, in paniculiform arrays. Peduncles 1.8–8 cm, moderately hairy. Involucres globoid to usually ovoid, 4–12 × 4–12 mm. Phyllaries (connate proximally) moderately hairy. Ray florets 7–13, pistillate, fertile; corollas usually yellow throughout, sometimes reddish proximally and yellow distally, 2.6–9.1 × 1.5–6.7 mm. Disc florets 120–400+; corollas yellow to yellow-green proximally, brown to reddish brown distally, 1.2–2.4 mm, lobes (4–)5. Cypselae 0.7–1.4 mm, moderately hairy; pappi of usually 6 entire, non-aristate scales (0.2–)0.3–0.7 mm.
Distribution
Ariz., N.Mex., Okla., Tex., n Mexico.
Discussion
Varieties 2 (2 in the flora).
Selected References
None.
Key
1 | Peduncles 1–3.5 cm, projecting terminal heads barely beyond foliage; involucres 4–8 × 4–8 mm | Helenium microcephalum var. microcephalum |
1 | Peduncles 1.5–8 cm, usually projecting terminal heads well beyond foliage; involucres 8–12 × 8–12 mm | Helenium microcephalum var. oöclinium |