Difference between revisions of "Dioscorea floridana"

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Common name: Florida yam
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Common name: Florida yam, Florida wild yam
 
==Taxonomic notes==
 
==Taxonomic notes==
 
Synonym: ''Dioscorea villosa'' L. var. ''floridana'' (Bartlett) H.E. Ahles.<ref name="weakley">Weakley, A.S. 2015. Flora of the southern and mid-atlantic states. Working Draft of 21 May 2015. University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.</ref>
 
Synonym: ''Dioscorea villosa'' L. var. ''floridana'' (Bartlett) H.E. Ahles.<ref name="weakley">Weakley, A.S. 2015. Flora of the southern and mid-atlantic states. Working Draft of 21 May 2015. University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.</ref>

Revision as of 16:12, 25 May 2023

Dioscorea floridana
Dios flor.jpg
Photo by Shirley Denton (Copyrighted, use by photographer’s permission only), Atlas of Florida Vascular Plants
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Liliopsida – Monocotyledons
Order: Liliales
Family: Dioscoreaceae
Genus: Dioscorea
Species: D. floridana
Binomial name
Dioscorea floridana
Bartlett
DIOS FLOR dist.jpg
Natural range of Dioscorea floridana from USDA NRCS Plants Database.

Common name: Florida yam, Florida wild yam

Taxonomic notes

Synonym: Dioscorea villosa L. var. floridana (Bartlett) H.E. Ahles.[1]

Varieties: none.[1]

Description

A description of Dioscorea floridana is provided in The Flora of North America. Dioscorea floridana is a perennial herbaceous vine. The University of Florida has provided an accessible online PDF on how to differentiate the several species of yam in Florida. See link provided here: [Air Potato PDF] [2] D. floridana species is distinguished by having the two or three staminate inflorescences when compared to D. quaternata and D. villosa.[3]

Distribution

According to the USDA NRCS website, Dioscorea floridana's distribution occurs in South Carolina, Georgia, and Florida.[4] Most of its native distribution is in Florida, and only southern Georgia and the southwest corner of South Carolina along the coast.[5] Due to its limited range, it is considered vulnerable on the Global Status. [6]

Ecology

Habitat

Generally, D. floridana can be found in dry to mesic forests as well as swampy forests.[7] It has been observed to occur in wet, sandy areas like pond edges, dry slopes, and woodland patches.[8] It has also been found in a coastal hydric hammock and an upland mixed forest in the Waccasassa Bay State Preserve in Levy county, Florida.[9] This species is also restricted to native growth areas rather than old fields that were abandoned agriculture.[10]

Associated species: Carya glabra, C. tomentosa, Pinus palustris, Cornus florida, Collinsonia anisata, Vaccinium stamineum var. stamineum, Vaccinium sp., Quercus falcata, Quercus pumila, Morella cerifera, Rubus cuneifolius, Viburnum rufidulum, and Erianthus sp.[8]

Phenology

This species flowers from June to July as well as from August to November.[7] D. floridana has been observed flowering in March.[11]

Conservation, cultivation, and restoration

While it is not listed for any conservation population concerns, D. floridana has such a limited native range that leads it to be of conservational interest.[4]

Cultural use

Photo Gallery

References and notes

  1. 1.0 1.1 Weakley, A.S. 2015. Flora of the southern and mid-atlantic states. Working Draft of 21 May 2015. University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
  2. [Air Potato PDF] Accessed: April 22, 2016.
  3. Ihsan A. AL-Shehbaz and Bernice G. Schubert (1810) The Discoreaceae in the Southeastern United States. Journal of the Arnold Arboretum 70(1) 57.59
  4. 4.0 4.1 [USDA NRCS Plant Database] Access: April 22, 2016. Cite error: Invalid <ref> tag; name "USDA" defined multiple times with different content
  5. Sorrie, B. A. and A. S. Weakley (2001). "Coastal plain vascular plant endemics: Phytogeographic Patterns." Castanea 66(1/2): 50-82.
  6. [Nature Serve] Accessed: April 22, 2016.
  7. 7.0 7.1 Weakley, A. S. (2015). Flora of the Southern and Mid-Atlantic States. Chapel Hill, NC, University of North Carolina Herbarium.
  8. 8.0 8.1 Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: June 2014. Collectors: Robert K. Godfrey and Lisa Keppner. States and Counties: Florida: Washington. Georgia: Thomas.
  9. Abbott, J. R. and W. S. Judd. (2000). "Floristic inventory of the Waccasassa Bay State Preserve, Levy county, Florida." Rhodora 102(912): 439-513.
  10. Ostertag, T. E. and K. M. Robertson (2007). A comparison of native versus old-field vegetation in upland pinelands managed with frequent fire, south Georgia, USA. Proceedings of the 23rd Tall Timbers Fire Ecology Conference: Fire in Grassland and Shrubland Ecosystems, Tallahassee, Tall Timbers Research Station.
  11. Nelson, G. PanFlora: Plant data for the eastern United States with emphasis on the Southeastern Coastal Plains, Florida, and the Florida Panhandle. www.gilnelson.com/PanFlora/ Accessed: 8 DEC 2016