Helianthus smithiorum Heiser (1964:346)
Smith's sunflower
Taxonomy & Nomenclature
Synonyms: Helianthus parviflorus var. attenuatus A.Gray in Syn. Fl. N. Amer. 1(2): 278 (1884); Helianthus smithii Heiser in Rhodora 66: 346 (1964) [orth. var.]
May be a hybrid between H. microcephalus and H. strumosus (FNA 2006 fide NatureServe, 2024).
Conservation Status
Last record: 1884 (Ripley, 1975:40)
Since Rediscovered [by implication]
Previously considered possibly Extinct ("poEX") (Ripley, 1975:40), but today it is known to be extant (NatureServe, 2024), and was thus presumably Rediscovered at some point.
Distribution & Habitat
Alabama, Georgia & Tennessee, USA
Anatomy & Morphology
Biology & Ecology
Hypodigm
Media
References
Original scientific description:
Heiser, C. B. and Smith, D. M. (1964). Species crosses in Helianthus: II. Polyploid species. Rhodora 66: 344-358.
Other references:
Allison, J. R. and Stevens, T. E. (2001). Vascular flora of the Ketona Dolomite outcrops in Bibb County, Alabama. Castanea 66(1&2): 154-205.
Cronquist, A. (1977). Notes on the Asteraceae of the southeastern United States. Brittonia 29: 217-225.
Flora of North America Editorial Committee (FNA). (2006). Flora of North America north of Mexico. Vol. 21. Magnoliophyta: Asteridae, part 8: Asteraceae, part 3. Oxford Univ. Press, New York. xxii + 616 pp.
Heiser, C. B., Jr., with Smith, D. M., Clevenger, S. B. and Martin, W. C., Jr. (1969). The North American sunflowers (Helianthus). Memoirs of the Torrey Botanical Club 22(3): 1-218.
Kartesz, J. T. (1994). A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Kral, R. (1983). A report on some rare, threatened, or endangered forest-related vascular plants of the South. U.S. Dept. of Agriculture Forest Service Technical Publication R8-TP2, Athens, GA. 1305 pp.
Laparra, H., Stoeve, P. and Ivanov, P. (1997). Plant regeneration from different explants in Helianthus smithii Heiser. Plant Cell Reports 16 (10): 692-695.
NatureServe. (2024). Helianthus smithii: Smith's Sunflower. NatureServe Network Biodiversity Location Data accessed through NatureServe Explorer [web application]. NatureServe, Arlington, Virginia. Available https://explorer.natureserve.org/ [Accessed 30 November 2024]
POWO. (2024). Plants of the World Online (online resource). Facilitated by the Royal Botanic Gardens, Kew, United Kingdom. Available at: https://powo.science.kew.org/ [Accessed 29 November 2024]
Ripley, S. Dillon. (1975). Report on endangered and threatened species of the United States. House Document 94-51: 1-200 [40].
Roskov Y. et al. (eds.). (2018). Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands.
Seiler, G. J., and Gulya, T. J., Jr. (2005). Recent explorations to recover seed of rare and interesting Helianthus species and future explorations. Proceedings Sunflower Research Workshop. 27th Sunflower Research Workshop, January 12-13, 2005, Fargo, ND. Online. Available: http://www.sunflowernsa.com/research/research-workshop/documents/seiler_recoveringseeds_05.pdf
Southern Appalachian Species Viability Project. (2002). A partnership between the U.S. Forest Service-Region 8, Natural Heritage Programs in the Southeast, NatureServe, and independent scientists to develop and review data on 1300+ regionally and locally rare species in the Southern Appalachian and Alabama region. Database (Access 97) provided to the U.S. Forest Service by NatureServe, Durham, North Carolina.
Weakley, A. S. (1996). Flora of the Carolinas and Virginia: working draft of 23 May 1996. The Nature Conservancy, Southeast Regional Office, Southern Conservation Science Dept., Chapel Hill, North Carolina. Unpaginated.
Wofford, B. E., and Kral, R. (1993). Checklist of the vascular plants of Tennessee. Sida Botanical Miscellany No. 10, Botanical Research Institute of Texas, Fort Worth. 66 pp.