Jump to: SynonymsCommon NamesDistributional RangeReferencesOther Web ReferencesImages

Taxon: Helianthus porteri (A. Gray) Pruski

Genus: Helianthus
Family: Asteraceae (alt.Compositae)
Subfamily: Asteroideae
Tribe: Heliantheae
Nomen number: 104319
Place of publication: Castanea 63:75. 1998 (Yates & Heiser, Proc. Indiana Acad. Sci. 88:371. 1979, nom. inval.)
Link to protologue:
Name Verified on: 08-Mar-2010 by ARS Systematic Botanists. Last Changed: 26-May-2018
Species priority site is: North Central Regional PI Station (NC7)
Accessions: 13 (12 active, 12 available) in National Plant Germplasm System (GoogleMap)


Common names:

  • Confederate daisy  (Source: Castanea) - English
  • Porter's sunflower  (Source: PLANTS) - English

Distributional Range:


    Northern America
    • SOUTHEASTERN U.S.A.: United States [Alabama (e.-c.), Georgia (n.), South Carolina]


    Northern America
    • SOUTHEASTERN U.S.A.: United States [North Carolina]


  1. FNA Editorial Committee Flora of North America. (F NAmer)
  2. Gulya, T. J. et al. 2007. Exploration and collection of rare Helianthus species from southeastern United States (Helia) 30:13-24.
  3. Knobloch, I. W. 1972. Intergeneric hybridization in flowering plants (Taxon) 21:97-103.
  4. Pruski, J. F. 1998. Helianthus porteri (A. Gray) Pruski (Compositae), a new combination validated for the Confederate daisy (Castanea) 63:74-75.
  5. Radford, A. E. et al., eds. Vascular flora of the southeastern United States. (F SE US)
  6. Rogers, C. E. et al. 1982. Sunflower species of the United States 55.
  7. Seiler, G. J. et al. 2010. Oil concentration and fatty acid profile of wild Helianthus species from the southeastern United States Industr. Crops Prod. 31:527-533.
  8. Timme, R. E. et al. 2007. High-resolution phylogeny for Helianthus (Asteraceae) using the 18S-26S ribosomal DNA external transcribed spacer Amer. J. Bot. 94:1837-1852.
  9. USDA, NRCS United States Department of Agriculture, Natural Resources Conservation Service's PLANTS database (on-line resource). (PLANTS)

Check other web resources for Helianthus porteri (A. Gray) Pruski :

  • Flora of North America: Collaborative Floristic Effort of North American Botanists
  • PLANTS: USDA-NRCS Database of Plants of the United States and its Territories
  • BONAP North American Plant Atlas of the Biota of North America Program:
  • TROPICOS: Nomenclatural and Specimen Database of the Missouri Botanical Garden
  • ePIC: Electronic Plant Information Centre of Royal Botanic Gardens, Kew
  • AGRICOLA: Article Citation Database or NAL Catalog of USDA's National Agricultural Library
  • Entrez: NCBI's search engine for PubMed citations, GenBank sequences, etc.
  • PubAg: USDA's National Agricultural Library database of full-text journal articles and citations on the agricultural sciences.


  • Capitulum: USDA/ARS Sunflower Research Unit
  • Habit: USDA/ARS Sunflower Research Unit

Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2018. Germplasm Resources Information Network (GRIN-Taxonomy).
National Germplasm Resources Laboratory, Beltsville, Maryland. URL: https://npgsweb.ars-grin.gov/gringlobal/taxonomydetail.aspx?id=104319. Accessed 15 November 2018.