Helianthus porteri: Difference between revisions

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'''''Helianthus porteri''''' is a species of [[Helianthus|sunflower]] known by the common names '''Porter's sunflower'''<ref>{{PLANTS|id=HEPO3|taxon=Helianthus porteri|accessdate=6 July 2015}}</ref> and '''Confederate daisy'''. It is native to the southeastern United States ([[Georgia (U.S. state)|Georgia]], [[Alabama]], and the [[Carolinas]]).<ref>[http://bonap.net/MapGallery/County/Helianthus%20porteri.png Biota of North America Program 2014 county distribution map]</ref>
'''''Helianthus porteri''''' is a species of [[Helianthus|sunflower]] known by the common names '''Porter's sunflower'''<ref>{{PLANTS|id=HEPO3|taxon=Helianthus porteri|accessdate=6 July 2015}}</ref>, '''Stone Mountain Daisy'''<ref>Scott Ranger's Nature Notes http://scottranger.com/helianthus-porteri-confederate-daisy.html</ref> and '''Confederate daisy'''. It is native to the southeastern United States ([[Georgia (U.S. state)|Georgia]], [[Alabama]], and the [[Carolinas]]}}).<ref>[http://bonap.net/MapGallery/County/Helianthus%20porteri.png Biota of North America Program 2014 county distribution map]</ref> It is native to Alabama and Georgia, but has been introduced to granite outcrop areas in North Carolina where it is aggressively weedy <ref> Weakley AS. 2015. Flora of the southern and mid‐Atlantic states. University of North Carolina Herbarium, North Carolina Botanical Garden, Chapel Hill, NC, USA. [WWW document] URL http://www.herbarium.unc.edu/flora.htm </ref>


''Helianthus porteri'' grows on granite hillsides. It is an annual herb up to 100&nbsp;cm (40 inches) tall. One plant usually produces 5 or more [[Head (botany)|flower heads]], each containing 7 or 8 yellow [[ray florets]] surrounding 30 or more yellow [[disc floret]]s.<ref>[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066895 Flora of North America, ''Helianthus porteri'' (A. Gray) Pruski, 1998. Confederate daisy ]</ref><ref>[https://www.biodiversitylibrary.org/item/123407#page/352/mode/1up Blake, Sydney Fay 1918. Contributions from the Gray Herbarium of Harvard University 54: 114–115], as ''Viguiera porteri''</ref>
''Helianthus porteri'' grows on thin soils on and around flat rock granite and gneiss outcrops <ref>Scott Ranger's Nature Notes http://scottranger.com/helianthus-porteri-confederate-daisy.html</ref>. It is an annual herb up to 100&nbsp;cm (40 inches) tall. One plant usually produces 5 or more [[Head (botany)|flower heads]], each containing 7 or 8 yellow [[ray florets]] surrounding 30 or more yellow [[disc floret]]s.<ref>[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066895 Flora of North America, ''Helianthus porteri'' (A. Gray) Pruski, 1998. Confederate daisy ]</ref><ref>[https://www.biodiversitylibrary.org/item/123407#page/352/mode/1up Blake, Sydney Fay 1918. Contributions from the Gray Herbarium of Harvard University 54: 114–115], as ''Viguiera porteri''</ref>


==References==
==References==

Revision as of 18:46, 25 December 2019

Confederate daisy
Helianthus porteri on Stone Mtn.
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Genus:
Helianthus
Species:
H. porteri
Binomial name
Helianthus porteri
(A.Gray) Pruski 1998 not (A.Gray) Heiser 1978 (1978 name not validly published)
Synonyms[1]
  • Gymnolomia porteri (A.Gray) A.Gray
  • Heliomeris porteri (A.Gray) Cockerell
  • Rudbeckia porteri A.Gray
  • Viguiera porteri (A.Gray) S.F.Blake

Helianthus porteri is a species of sunflower known by the common names Porter's sunflower[2], Stone Mountain Daisy[3] and Confederate daisy. It is native to the southeastern United States (Georgia, Alabama, and the Carolinas}}).[4] It is native to Alabama and Georgia, but has been introduced to granite outcrop areas in North Carolina where it is aggressively weedy [5]

Helianthus porteri grows on thin soils on and around flat rock granite and gneiss outcrops [6]. It is an annual herb up to 100 cm (40 inches) tall. One plant usually produces 5 or more flower heads, each containing 7 or 8 yellow ray florets surrounding 30 or more yellow disc florets.[7][8]

References

  1. ^ The Plant List, Helianthus porteri (A.Gray) Pruski
  2. ^ USDA, NRCS (n.d.). "Helianthus porteri". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 6 July 2015.
  3. ^ Scott Ranger's Nature Notes http://scottranger.com/helianthus-porteri-confederate-daisy.html
  4. ^ Biota of North America Program 2014 county distribution map
  5. ^ Weakley AS. 2015. Flora of the southern and mid‐Atlantic states. University of North Carolina Herbarium, North Carolina Botanical Garden, Chapel Hill, NC, USA. [WWW document] URL http://www.herbarium.unc.edu/flora.htm
  6. ^ Scott Ranger's Nature Notes http://scottranger.com/helianthus-porteri-confederate-daisy.html
  7. ^ Flora of North America, Helianthus porteri (A. Gray) Pruski, 1998. Confederate daisy
  8. ^ Blake, Sydney Fay 1918. Contributions from the Gray Herbarium of Harvard University 54: 114–115, as Viguiera porteri

External links

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