Rhexia alifanus

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Rhexia alifanus
Rhexia alifanu SEF.jpg
Photo by John Gwaltney hosted at Southeastern Flora.com
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicots
Order: Myrtales
Family: Melastomataceae
Genus: Rhexia
Species: R. alifanus
Binomial name
Rhexia alifanus
Walter
RHEX ALIF DIST.JPG
Natural range of Rhexia alifanus from USDA NRCS Plants Database.

Taxonomic Notes

Synonym: none

Variety: none

Description

R. alifanus is a perennial forb/herb of the Melastomataceae family that is native to North America.[1]

Distribution

R. alifanus is found in the southeastern United States; specifically in Florida, Georgia, South Carolina, North Carolina, Alabama, Louisiana, Mississippi, and Texas.[1]

Ecology

Habitat

R. alifanus is typically found in pine flatwoods, savannas, longleaf pine-scrub oak ridges, pine woodlands, hillside bogs, cypress ponds, and pocosin borders.[2][3] It is also found in disturbed areas including road banks, drained and bulldozed flatwoods bogs, logged pinelands, and burned longleaf pine savanna.[3] Transitions between uplands and lowlands, commonly wet prairie, is another common habitat to find R. alifanus.[4]

Associated species: Pinus palustris, Muhlenbergia capillaris, Paspalum plicatulum, Xyris spp., Pluchea rosea, Rhexia lutea, Liatris spp., Dichanthelium spp., and Asclepias.[5]

R. alifanus was unaffected by clearcutting and chopping in north Florida flatwoods forests.[6]

Rhexia alifanus is frequent and abundant in the Upper Panhandle Savannas and Panhandle Seepage Savannas community type. It is an indicator species for the Lower Panhandle Savannas community type as described in Carr et al. (2010).[7]

Phenology

R. alifanus has been observed flowering May through July.[8]

Seed dispersal

This species is thought to be dispersed by gravity.[9]

Fire ecology

Populations of Rhexia alifanus have been known to persist through repeated annual burning.[10]

Pollination

Bees are pollinators for R. alifanus.[11]

Conservation, cultivation, and restoration

Cultural use

It is possible the greens and tubers can be used in salads for a sweetish, nutty taste.[12]

Photo Gallery

References and notes

  1. 1.0 1.1 USDA Plant Database
  2. Weakley, A. S. (2015). Flora of the Southern and Mid-Atlantic States. Chapel Hill, NC, University of North Carolina Herbarium.
  3. 3.0 3.1 Florida State University Herbarium Database. URL: http://herbarium.bio.fsu.edu. Last accessed: June 2021. Collectors: R. R. Bounds, Edwin L. Bridges, Robert K. Godfrey, C. W. James, Robert Kral, Jason Larkin, S. W. Leonard, Steve L. Orzell, and D. B. Ward. States and counties: Florida: Baker, Franklin, Jackson, Leon, Liberty, and Wakulla. Georgia: Laurens.
  4. [Crandall, R. M. and W. J. Platt (2012). "Habitat and fire heterogeneity explain the co-occurrence of congeneric resprouter and reseeder Hypericum spp. along a Florida pine savanna ecoline." Plant Ecology 213: 1643-1654.]
  5. Louisiana State University, Shirley C. Tucker Herbarium accessed using Southeastern Regional Network of Expertise and Collections (SERNEC) data portal. URL: http://sernecportal.org/portal/collections/index.php Last accessed: June 2021. Collectors: Charles M. Allen and David J. Rosen. States and Counties: Louisiana: Calcasieu.
  6. Moore, W.H., B.F. Swindel, and W.S. Terry. (1982). Vegetative Response to Clearcutting and Chopping in a North Florida Flatwoods Forest. Journal of Range Management 35(2):214-218.
  7. Carr, S.C., K.M. Robertson, and R.K. Peet. 2010. A vegetation classification of fire-dependent pinelands of Florida. Castanea 75:153-189.
  8. 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: 29 MAY 2018
  9. Kirkman, L. Katherine. Unpublished database of seed dispersal mode of plants found in Coastal Plain longleaf pine-grasslands of the Jones Ecological Research Center, Georgia.
  10. Platt, W.J., R. Carter, G. Nelson, W. Baker, S. Hermann, J. Kane, L. Anderson, M. Smith, K. Robertson. 2021. Unpublished species list of Wade Tract old-growth longleaf pine savanna, Thomasville, Georgia.
  11. [Pitts-Singer, T. L., et al. (2002). "Insect pollinators of three rare plants in a Florida longleaf pine forest." Florida Entomologist 85(2): 308-316.]
  12. Fernald, et al. 1958. Edible Plants of Eastern North America. Harper and Row Publishers, New York.