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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:
1 (1  active, 0  available) in National Plant Germplasm System.  (Map it)
Other conspecific taxa
Helianthus debilis Nutt. (3 active accession[s])
Helianthus debilis Nutt. subsp. debilis (1 active accession[s])
Helianthus debilis Nutt. subsp. silvestris Heiser (4 active accession[s])
Helianthus debilis Nutt. subsp. tardiflorus Heiser (2 active accession[s])
Helianthus debilis Nutt. subsp. vestitus (E. Watson) Heiser (2 active accession[s])
Autonyms (not in current use), synonyms and invalid designations
Basionym
Helianthus cucumerifolius Torr. & A. Gray

No images


Reference(s)
  1. Acevedo-Rodríguez, P. & M. T. Strong. Catalogue of seed plants of the West Indies. Smithsonian Contr. Bot. 98. 2012
  2. Erhardt, W. et al. Der große Zander: Enzyklopädie der Pflanzennamen. 2008
  3. FNA Editorial Committee. Flora of North America. 1993-
  4. Germishuizen, G. & N. L. Meyer, eds. Plants of southern Africa: an annotated checklist. Strelitzia 14. 2003
  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. Census of Australian vascular plants. Australian Flora and Fauna Series No. 11. 1990
  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. Hortus third. 1976
  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. Vascular flora of the southeastern United States. 1980-
  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. 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.
  15. Rogers, C. E. et al. 1982. Sunflower species of the United States. 7.
  16. Scascitelli, M. et al. 2010. Genome scan of hybridizing sunflowers from Texas (Helianthus annuus and H. debilis) reveals asymmetric patterns of introgression and small islands of genomic differentiation. Molec. Ecol. 19:521-541.
  17. 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.
  18. Snow, A. A. et al. 1998. Fecundity, phenology, and seed dormancy of F1 wild-crop hybrids in sunflower (Helianthus annuus, Asteraceae). Amer. J. Bot. 85:794-801.
  19. 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.
  20. 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.
  21. Townsend, J., ed. South Carolina plant atlas (on-line resource).
  22. 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.
  23. 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.
  24. Western Australian Herbarium. FloraBase²: the Western Australian flora (on-line resource).
  25. Wu Zheng-yi & P. H. Raven et al., eds. Flora of China (English edition). 1994-
Common names
English
cucumber-leaf sunflower –
German
gurkenblättrige Sonnenblume –
Transcribed Chinese
gua ye kui –
Distribution
order_codeStatusContinentSubcontinentCountryStateNote
1NativeNorthern AmericaSouth-Central U.S.A.United StatesTexas 
2Cultivated     
3AdventiveAsia-TropicalIndian SubcontinentIndia  
3AdventiveEuropeMiddle EuropeAustria  
3AdventiveEuropeNorthern EuropeNorway  
3AdventiveEuropeSouthwestern EuropeFrance  
4NaturalizedAfricaSouthern AfricaSouth Africa  
4NaturalizedAsia-TemperateEastern AsiaTaiwan  
4NaturalizedAustralasiaAustraliaAustraliaWestern Australia 
4NaturalizedEuropeMiddle EuropeCzech Republic  
4NaturalizedEuropeMiddle EuropeSlovakia  
4NaturalizedNorthern AmericaNortheastern U.S.A.United StatesConnecticut 
4NaturalizedNorthern AmericaNortheastern U.S.A.United StatesMassachusetts 
4NaturalizedNorthern AmericaNortheastern U.S.A.United StatesMichigan 
4NaturalizedNorthern AmericaNortheastern U.S.A.United StatesNew Hampshire 
4NaturalizedNorthern AmericaNortheastern U.S.A.United StatesNew York 
4NaturalizedNorthern AmericaNortheastern U.S.A.United StatesPennsylvania 
4NaturalizedNorthern AmericaNortheastern U.S.A.United StatesRhode Island 
4NaturalizedNorthern AmericaNortheastern U.S.A.United StatesVermont 
4NaturalizedNorthern AmericaNortheastern U.S.A.United StatesWest Virginia 
4NaturalizedNorthern AmericaSoutheastern U.S.A.United StatesFlorida 
4NaturalizedNorthern AmericaSoutheastern U.S.A.United StatesGeorgia 
4NaturalizedNorthern AmericaSoutheastern U.S.A.United StatesLouisiana 
4NaturalizedNorthern AmericaSoutheastern U.S.A.United StatesMaryland 
4NaturalizedNorthern AmericaSoutheastern U.S.A.United StatesNorth Carolina 
4NaturalizedNorthern AmericaSoutheastern U.S.A.United StatesSouth Carolina 
4NaturalizedNorthern AmericaSoutheastern U.S.A.United StatesVirginia 
4NaturalizedSouthern AmericaCaribbeanCuba  
Native
Northern America
  • SOUTH-CENTRAL U.S.A.: United States [Texas]
Cultivated ()
Adventive
Asia-Tropical
  • INDIAN SUBCONTINENT: India
Europe
  • MIDDLE EUROPE: Austria
  • NORTHERN EUROPE: Norway
  • SOUTHWESTERN EUROPE: France
Naturalized
Africa
  • SOUTHERN AFRICA: South Africa
Asia-Temperate
  • EASTERN ASIA: Taiwan
Australasia
  • AUSTRALIA: Australia [Western Australia]
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
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. 2025. Germplasm Resources Information Network (GRIN Taxonomy). National Germplasm Resources Laboratory, Beltsville, Maryland.
URL: https://ausgenebank.agriculture.vic.gov.au/gringlobal/taxon/taxonomydetail?id=104288. Accessed 8 December 2025.

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