Taxon:  Helianthus debilis Nutt. subsp. cucumerifolius (Torr. & A. Gray) Heiser



Summary
Genus:
Helianthus
Family:
Asteraceae (alt. Compositae)
Subfamily:
Asteroideae
Tribe:
Heliantheae
Nomen number:
104288
Place of publication:
Madroño 13:160.  1956
Verified:
03/08/2010 ARS Systematic Botanists.
Accessions:
14 (14  active, 14  available) in National Plant Germplasm System.  (Map it)
Other conspecific taxa
Helianthus debilis Nutt. (1 active accession[s])
Helianthus debilis Nutt. subsp. debilis (13 active accession[s])
Helianthus debilis Nutt. subsp. silvestris Heiser (22 active accession[s])
Helianthus debilis Nutt. subsp. tardiflorus Heiser (13 active accession[s])
Helianthus debilis Nutt. subsp. vestitus (E. Watson) Heiser (12 active accession[s])
Autonyms (not in current use), synonyms and invalid designations
Basionym
Helianthus cucumerifolius Torr. & A. Gray

Images (3 total. Click on image for more.)
Habit

Conservation Status

Reference(s)
  1. Acevedo-Rodríguez, P. & M. T. Strong. 2012. Catalogue of seed plants of the West Indies. Smithsonian Contr. Bot. 98
  2. Erhardt, W. et al. 2008. Der große Zander: Enzyklopädie der Pflanzennamen 1455.
  3. FNA Editorial Committee. 1993-. Flora of North America.
  4. Germishuizen, G. & N. L. Meyer, eds. 2003. Plants of southern Africa: an annotated checklist. Strelitzia 14 National Botanical Institute, Pretoria, South Africa.
  5. Giordani, T. et al. 2003. Analysis of a dehydrin encoding gene and its phylogenetic utility in Helianthus. Theor. Appl. Genet. 107:316-325.
  6. Heiser, C. B., Jr. et al. 1969. The North American sunflowers (Helianthus). Mem. Torrey Bot. Club 22(3):50-51.
  7. Heiser, C. B., Jr. 1951. Hybridization in the annual sunflowers: Helianthus annuus × H. debilis var. cucumerifolius. Evolution 5:42-51.
  8. Hnatiuk, R. J. 1990. Census of Australian vascular plants. Australian Flora and Fauna Series No. 11.
  9. Kim, S.-C. & L. H. Rieseberg. 1999. Genetic architecture of species differences in annual sunflowers: Implications for adaptive trait introgression. Genetics 153:965-977.
  10. Liberty Hyde Bailey Hortorium. 1976. Hortus third. A concise dictionary of plants cultivated in the United States and Canada
  11. Porcher, M. H. et al. Searchable World Wide Web Multilingual Multiscript Plant Name Database (MMPND) (on-line resource).
  12. Radford, A. E. et al., eds. 1980-. Vascular flora of the southeastern United States.
  13. Rieseberg, L. G. et al. 1990. Helianthus annuus ssp. texanus has chloroplast DNA and nuclear ribosomal RNA genes of Helianthus debilis ssp. cucumerifolius. Proc. Natl. Acad. Sci. U.S.A. 87:593-597.
  14. Rogers, C. E. et al. 1982. Sunflower species of the United States 7.
  15. Schilling, E. E. et al. 1998. Phylogenetic relationships in Helianthus (Asteraceae) based on nuclear ribosomal DNA internal transcribed spacer region sequence data. Syst. Bot. 23:177-187. www.aspt.net/systematic-botany
  16. 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.
  17. Townsend, J., ed. South Carolina plant atlas (on-line resource).
  18. Vukich, M. et al. 2009. Genetic variability in sunflower (Helianthus annuus l.) and in the Helianthus genus as assessed by retrotransposons-based molecular markers. Theor. Appl. Genet. 119:1027-1038.
  19. Western Australian Herbarium. FloraBase²: the Western Australian flora (on-line resource).
  20. Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).
Common names
LanguageNameAlternate namenoteseqCitation
Englishcucumber-leaf sunflower  1Rogers, C. E. et al. 1982. Sunflower species of the United States 7.
Germangurkenblättrige Sonnenblume  2Erhardt, W. et al. 2008. Der große Zander: Enzyklopädie der Pflanzennamen 1455.
Transcribed Chinesegua ye kui  2Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).
Distribution
order_codeStatusContinentSubcontinentCountryStateNoteReference
1NativeNorthern AmericaSouth-Central U.S.A.United StatesTexass.-c.Heiser, C. B., Jr. et al. 1969. The North American sunflowers (Helianthus). Mem. Torrey Bot. Club 22(3):50-51.
2Cultivated    also cult. 
3AdventiveAsia-TropicalIndian SubcontinentIndia  Sharma, B. D. et al., eds. 1993-. Flora of India.
3AdventiveEuropeMiddle EuropeAustria  Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource).
3AdventiveEuropeNorthern EuropeNorway  Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource).
3AdventiveEuropeSouthwestern EuropeFrance  Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource).
4NaturalizedAfricaSouthern AfricaSouth Africa  Germishuizen, G. & N. L. Meyer, eds. 2003. Plants of southern Africa: an annotated checklist. Strelitzia 14 National Botanical Institute, Pretoria, South Africa.
4NaturalizedAsia-TemperateEastern AsiaTaiwan  Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).
4NaturalizedAustralasiaAustraliaAustraliaWestern Australias.w.Western Australian Herbarium. FloraBase²: the Western Australian flora (on-line resource).
4NaturalizedEuropeMiddle EuropeCzech Republic  Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource).
4NaturalizedEuropeMiddle EuropeSlovakia  Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource).
4NaturalizedNorthern AmericaNortheastern U.S.A.United StatesConnecticut FNA Editorial Committee. 1993-. Flora of North America.
4NaturalizedNorthern AmericaNortheastern U.S.A.United StatesMassachusetts FNA Editorial Committee. 1993-. Flora of North America.
4NaturalizedNorthern AmericaNortheastern U.S.A.United StatesMichigan FNA Editorial Committee. 1993-. Flora of North America.
4NaturalizedNorthern AmericaNortheastern U.S.A.United StatesNew Hampshire FNA Editorial Committee. 1993-. Flora of North America.
4NaturalizedNorthern AmericaNortheastern U.S.A.United StatesNew York FNA Editorial Committee. 1993-. Flora of North America.
4NaturalizedNorthern AmericaNortheastern U.S.A.United StatesPennsylvania FNA Editorial Committee. 1993-. Flora of North America.
4NaturalizedNorthern AmericaNortheastern U.S.A.United StatesRhode Island FNA Editorial Committee. 1993-. Flora of North America.
4NaturalizedNorthern AmericaNortheastern U.S.A.United StatesVermont FNA Editorial Committee. 1993-. Flora of North America.
4NaturalizedNorthern AmericaNortheastern U.S.A.United StatesWest Virginia FNA Editorial Committee. 1993-. Flora of North America.
4NaturalizedNorthern AmericaSoutheastern U.S.A.United StatesFlorida FNA Editorial Committee. 1993-. Flora of North America.
4NaturalizedNorthern AmericaSoutheastern U.S.A.United StatesGeorgia FNA Editorial Committee. 1993-. Flora of North America.
4NaturalizedNorthern AmericaSoutheastern U.S.A.United StatesLouisiana FNA Editorial Committee. 1993-. Flora of North America.
4NaturalizedNorthern AmericaSoutheastern U.S.A.United StatesMaryland FNA Editorial Committee. 1993-. Flora of North America.
4NaturalizedNorthern AmericaSoutheastern U.S.A.United StatesNorth Carolina FNA Editorial Committee. 1993-. Flora of North America.
4NaturalizedNorthern AmericaSoutheastern U.S.A.United StatesSouth Carolina FNA Editorial Committee. 1993-. Flora of North America.
4NaturalizedNorthern AmericaSoutheastern U.S.A.United StatesVirginia FNA Editorial Committee. 1993-. Flora of North America.
4NaturalizedSouthern AmericaCaribbeanCuba  Acevedo-Rodríguez, P. & M. T. Strong. 2012. Catalogue of seed plants of the West Indies. Smithsonian Contr. Bot. 98
Native
Northern America
  • SOUTH-CENTRAL U.S.A.: United States [Texas (s.-c.)]
Cultivated (also cult.)
Adventive
Asia-Tropical
  • INDIAN SUBCONTINENT: India
Europe
  • NORTHERN EUROPE: Norway
  • MIDDLE EUROPE: Austria
  • SOUTHWESTERN EUROPE: France
Naturalized
Africa
  • SOUTHERN AFRICA: South Africa
Asia-Temperate
  • EASTERN ASIA: Taiwan
Australasia
  • AUSTRALIA: Australia [Western Australia (s.w.)]
Europe
  • MIDDLE EUROPE: Czech Republic, Slovakia
Northern America
  • NORTHEASTERN U.S.A.: United States [Connecticut, Massachusetts, Michigan, New Hampshire, New York, Pennsylvania, Rhode Island, Vermont, West Virginia]
  • SOUTHEASTERN U.S.A.: United States [Florida, Georgia, Louisiana, Maryland, North Carolina, South Carolina, Virginia]
Southern America
  • CARIBBEAN: Cuba

Reference(s)
  1. Acevedo-Rodríguez, P. & M. T. Strong. 2012. Catalogue of seed plants of the West Indies. Smithsonian Contr. Bot. 98
  2. Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource).
  3. FNA Editorial Committee. 1993-. Flora of North America.
  4. Germishuizen, G. & N. L. Meyer, eds. 2003. Plants of southern Africa: an annotated checklist. Strelitzia 14 National Botanical Institute, Pretoria, South Africa.
  5. Heiser, C. B., Jr. et al. 1969. The North American sunflowers (Helianthus). Mem. Torrey Bot. Club 22(3):50-51.
  6. Sharma, B. D. et al., eds. 1993-. Flora of India.
  7. Western Australian Herbarium. FloraBase²: the Western Australian flora (on-line resource).
  8. Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).
Economic Uses
UsageTypeNoteReference
Environmentalornamental Rogers, C. E. et al. 1982. Sunflower species of the United States 7.
Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2026. Germplasm Resources Information Network (GRIN Taxonomy). National Germplasm Resources Laboratory, Beltsville, Maryland.
URL: https://npgstest.ars-grin.gov/gringlobal/taxon/taxonomydetail?id=104288. Accessed 8 May 2026.