Mitreola sessilifolia

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Common name: swamp hornpod[1], small-leaved miterwort[2]

Mitreola sessilifolia
Mitreola sessilifolia SEF.jpg
Photo from the Southeastern Flora Database
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicots
Order: Gentianales
Family: Loganiaceae
Genus: Mitreola
Species: M. sessilifolia
Binomial name
Mitreola sessilifolia
J.F. Gmelin
Natural range of Mitreola sessilifolia from USDA NRCS Plants Database.

Taxonomic Notes

Synonyms: Cynoctonum sessilifolium J.F. Gmelin.[3]

Varieties: none.[3]


M sessilifolia is an annual forb/herb of the Loganiaceae family native to North America.[1] It's leaves are sessile, rounded at the base, and 1.5-2x as long as wide. Mature seeds are smooth and the capsule is papillose-warty.[3]


M. sessifolia ranges from southeast Virginia to Florida and west to east Texas. It's also found in the Bahamas.[3]



M. sessilifolia is found in wet savannas, pocosins, ditches, and margins of limesink depressions (dolines).[2] Specimens have been collected from moist loamy sand, wet ditches, oak woods, pine flatwoods, border of swampy woodlands, longleaf pine wiregrass, savannas, sandy peat of slash pines, floodplain marshes, sinkhole pondshores, wet pinelands, frequently-burned hillsides of seepage bogs, pine-gum woodlands, and along streams.[4]

M. sessilifolia decreased its occurrence or was unaffected in response to soil disturbance by roller chopping in south Florida. It either exhibited regrowth or was unaffected by reestablished native habitat that was disturbed by this practice.[5]

Mitreola sessilifolia is an indicator species for the Calcareous Savannas community type as described in Carr et al. (2010).[6]


M. sessilifloria flowers from late June to August and fruits from September through October.[3]

Fire ecology

Populations of Mitreola sessilifolia have been known to persist through repeated annual burning.[7]

Conservation, cultivation, and restoration

Cultural use

Photo Gallery

References and notes

  1. 1.0 1.1 USDA Plant Database
  2. 2.0 2.1 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 3.2 3.3 3.4 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.
  4. URL: Last accessed: June 2018. Collectors: Loran C. Anderson, R.A> Norris, R.F. Doren, R.K. Godfrey, R. Komarek, Cecil Slaughter, S.W. Leonard, R.E. Perdue, R. Kral, Victoria Sullivan, Richard Houk, Robert J. Lamaire, George R. Cooley, Carroll E. Wood Jr., Kenneth A. Wilson, Leonard J. Brass, Steve Orzell, Edwin L. Bridges, James D. Ray, Sidney McDaniel, S.B. Jones, A.B. Seymour, D.S. Correll, E. C. Ogden, H.K. Svenson, A.E. Radford, P. Sheridan, Jeffery M. Kane, William Platt. States and counties: Florida (Liberty, Leon, Franklin, Santa Rosa, Flagler, Monroe, Jefferson, Levy, Brevard, Okaloosa, Orange, Bay, Palm Beach, St. Johns, Okeechobee, Indian River, Citrus, Calhoun, COllier, Gulf, Walton, Okaloosa, Martin, Lee, Nassau, Holmes) Georgia (Thomas, Grady, Berrien, Tattnall, Baker, Colquitt) Alabama (Mobile, Washington, Monroe) Mississippi (Lamar, Greene, Jackson, George) North Carolina (Onslow) South Carolina (Williamsburg) Texas (Jasper, Hardin)
  5. Lewis, C.E. (1970). Responses to Chopping and Rock Phosphate on South Florida Ranges. Journal of Range Management 23(4):276-282.
  6. Carr, S.C., K.M. Robertson, and R.K. Peet. 2010. A vegetation classification of fire-dependent pinelands of Florida. Castanea 75:153-189.
  7. 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.