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Taxon:  Helianthus praecox Engelm. & A. Gray subsp. runyonii (Heiser) Heiser



Summary
Genus:
Helianthus
Family:
Asteraceae (alt. Compositae)
Subfamily:
Asteroideae
Tribe:
Heliantheae
Nomen number:
104321
Place of publication:
Mem. Torrey Bot. Club 22(3):54. 1969
Verified:
03/08/2010 ARS Systematic Botanists.
Accessions:
1 (1  active, 0  available) in National Plant Germplasm System.  (Map it)
Other conspecific taxa
Helianthus praecox Engelm. & A. Gray (3 active accession[s])
Helianthus praecox Engelm. & A. Gray subsp. hirtus (Heiser) Heiser (2 active accession[s])
Helianthus praecox Engelm. & A. Gray subsp. praecox (1 active accession[s])
Autonyms (not in current use), synonyms and invalid designations
No images


Reference(s)
  1. Dolgova, T. A. et al. 2007. Cytogenetic study of F1 interspecific hybrids of the section Helianthus. Helia 30:51-60.
  2. Dolgova, T. A. et al. 2007. Cytogenetic study of F1 interspecific hybrids of the section Helianthus. Helia 30:51-60.
  3. FNA Editorial Committee. Flora of North America. 1993-
  4. Heiser, C. B., Jr. et al. 1969. The North American sunflowers (Helianthus). Mem. Torrey Bot. Club 22(3):54.
  5. Horn, R. 2002. Molecular diversity of male sterility inducing and male-fertile cytoplasms in the genus Helianthus. Theor. Appl. Genet. 104:562-570.
  6. Horn, R. 2002. Molecular diversity of male sterility inducing and male-fertile cytoplasms in the genus Helianthus. Theor. Appl. Genet. 104:562-570.
  7. Rieseberg, L. H. 1991. Homoploid reticulate evolution in Helianthus (Asteraceae): evidence from ribosomal genes. Amer. J. Bot. 78:1218-1237.
  8. Rogers, C. E. et al. 1982. Sunflower species of the United States. 14.
Common names
English
premature javelin sunflower –
Runyon's sunflower –
Distribution
order_codeStatusContinentSubcontinentCountryStateNote
1NativeNorthern AmericaSouth-Central U.S.A.United StatesTexas 
Native
Northern America
  • SOUTH-CENTRAL U.S.A.: United States [Texas]
Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2025. Germplasm Resources Information Network (GRIN Taxonomy). National Germplasm Resources Laboratory, Beltsville, Maryland.
URL: https://ausgenebank.agriculture.vic.gov.au/gringlobal/taxon/taxonomydetail?id=104321. Accessed 10 December 2025.

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