Taxon: Helianthus mollis Lam.

Common names:

• ashy sunflower   (Source: F Mich ) – English
  
• soft sunflower   (Source: C. E. Rogers et al.) – English
  
• dunsolros   (Source: Vara kulturvaxt namn ) – Swedish
  

Economic importance:

• Gene sources: cytoplasmic male sterility for sunflower   (lines of hybrids of Helianthus annuus × H. mollis are used as restorers of CMS for H. annuus fide Theor Appl Genet 106:599. 2003)
  
• Gene sources: potential for pest resistance in sunflower   (for resistance to tobacco caterpillar traits fide Euphytica 155:209. 2007)
  
• Gene sources: tertiary genetic relative of sunflower   (based on hybrid formation in crosses with cultivated lines of H. annuus, and reports using embryo rescue fide Euphytica 81:260, 262. 1995)
  

More:

View ethnobotanical data from Moerman's Native American Ethnobotany Database

Distributional range:

• NORTHERN AMERICA (Check conservation status in U.S. & Canada in NatureServe Explorer database)
  Northeastern U.S.A.: United States - Indiana, Michigan, Ohio
  North-Central U.S.A.: United States - Illinois, Iowa [s.], Kansas [e.], Missouri, Nebraska, Oklahoma [e.], Wisconsin
  Southeastern U.S.A.: United States - Alabama [n.], Arkansas, Georgia [n.], Kentucky, Louisiana, Mississippi, Tennessee
  South-Central U.S.A.: United States - Texas

• NORTHERN AMERICA (Check conservation status in U.S. & Canada in NatureServe Explorer database)
  Eastern Canada: Canada - Ontario [s.e.]
  United States [Atlantic states]

References:

• Aldén, B., S. Ryman & M. Hjertson. 2009. Våra kulturväxters namn - ursprung och användning. Formas, Stockholm (Handbook on Swedish cultivated and utility plants, their names and origin).
• Atlagic, J. et al. 1995. Meiosis and pollen grain viability in Helianthus mollis, Helianthus salicifolius, Helianthus maximiliani and their F1 hybrids with cultivated sunflower. Euphytica 81:259–263.
• Atlagic, J. 2004. Roles of interspecific hybridization and cytogenetic studies in sunflower breeding. Helia 27:1–24.
• Brown, R. G. & M. L. Brown. 1984. Herbaceous plants of Maryland.
• Chester, E. W. et al. 1993–1997. Atlas of Tennessee vascular plants.
• Eilers, L. J. & D. M. Roosa. 1994. The vascular plants of Iowa.
• FNA Editorial Committee. 1993–. Flora of North America.
• Faure, N. et al. 2002. Partial hybridization in wide crosses between cultivated sunflower and the perennial Helianthus species H. mollis and H. orgyalis. Ann. Bot. (Oxford) 89:31–39.
• Gandhi, K. N. & R. D. Thomas. 1989. Asteraceae of Louisiana.
• Georgieva-Todorova, J. 1984. Interspecific hybridization in the genus Helianthus L. Z. Pflanzenzücht. 93:265–279.
• Heiser, C. B., Jr. et al. 1962. Species crosses in Helianthus: I. Diploid species. Brittonia 14:137–147.
• Heiser, C. B., Jr. et al. 1969. The North American sunflowers (Helianthus). Mem. Torrey Bot. Club 22(3):101–103.
• Horn, R. et al. 2003. Molecular mapping of the Rf1 gene restoring pollen fertility in PET1-based F1 hybrids in sunflower (Helianthus annuus). Theor. Appl. Genet. 106:599–606.
• McGregor, R. L. et al. (The Great Plains Flora Association). 1986. Flora of the Great Plains.
• Ohio Flora Committee (E. L. Braun, T. S. Cooperrider, T. R. Fisher, J. J. Furlow). 1967–. The vascular flora of Ohio.
• Radford, A. E. et al., eds. 1980–. Vascular flora of the southeastern United States.
• Radford, A. E. et al. 1964. Manual of the vascular flora of the Carolinas.
• Rogers, C. E. et al. 1982. Sunflower species of the United States. 38.
• 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.
• Smith, E. B. 1994. Keys to the flora of Arkansas.
• Strausbaugh, T. D. & E. L. Core. 1978. Flora of West Virginia, ed. 2.
• Sujatha, M. & M. Lakshminarayana. 2007. Resistance to Spodoptera litura (Fabr.) in Helianthus species and backcross derived inbred lines from crosses involving diploid species. Euphytica 155:205–213.
• Tikhomirov, V. T. & P. V. Chiryaev. 2005. Sources of resistance to diseases in original material of sunflower. Helia 28:101–106.
• 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.
• Townsend, J., ed. South Carolina plant atlas (on-line resource).
• Voss, E. 1972–. Michigan flora.
• Wherry, E. T. et al. 1979. Atlas of the flora of Pennsylvania.

More:

Search AGRICOLA article citation database for citations referencing Helianthus mollis.

Search NCBI's Entrez search engine for PubMed citations referencing Helianthus mollis.

Search Biodiversity Heritage Library for historical publications referencing Helianthus mollis.

Check other web resources for Helianthus mollis Lam.:

• 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.

Images:

• GRIN Images of germplasm accessions.
• Capitula: USDA/ARS Sunflower Research Unit
• Clone of the soft sunflower: USDA/ARS Sunflower Research Unit

More:

• Check PlantSystematics.org for additional images
• Images Note: Be advised that their identity may be inaccurate. Proper identification of a plant may require specialized taxonomic knowledge or comparison with properly documented herbarium material.

Abbreviations & symbols in GRIN Taxonomy

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