Carex verrucosa

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Carex verrucosa
Care verr.jpg
Photo by John R. Gwaltney, Southeastern
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Liliopsida – Monocotyledons
Order: Poales
Family: Cyperaceae
Genus: Carex
Species: C. verrucosa
Binomial name
Carex verrucosa
CARE VERR dist.jpg
Natural range of Carex verrucosa from USDA NRCS Plants Database.

Common name: Warty sedge

Taxonomic notes

Synonym: Carex glaucescens Elliott var. androgyna M.A. Curtis[1]

Varieties: none[1]


A description of Carex verrucosa is provided in The Flora of North America.


Carex verrucosa is endemic to the longleaf pine range.[2], distributed from southeast North Carolina south to Florida and west to Louisiana.[3]



Carex verrucosa are sedges that are almost restricted to wet savanna communities.[4] Thrives in wetland depressions in the southeastern coastal plain.[5] This species is found in sphagnum bogs in pine woods depressions, cypress ponds, and sweetbay-titi swamps. It is tolerant a range of light levels, from shady to sunny. It grows in sandy loam and peaty soils that are wet to saturated. Also found in roadside ditches.[6]

Associated species include Carex walteriana, Ilex myrtifolia, Lyonia, Panicum hemitomon, Polygala cymosa, Pontederia, Rhynchospora corniculata, Taxodium distichum, and others.[6]


The inflorescence is arranged in a spike. It has superior ovaries. C. verrucosa has been observed flowering from February to July, and also in October and November with peak inflorescence in April and May.[7][6] The fruit is a nutlet.[3]

Fire ecology

Populations of Carex species have been known to persist through repeated annual burns.[8]

Conservation, cultivation, and restoration

Cultural use

Photo Gallery

References and notes

  1. 1.0 1.1 Weakley, A.S. 2020. Flora of the Southeastern United States. Edition of 20 October 2020. University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
  2. Sorrie, B. A. and A. S. Weakley 2001. Coastal Plain valcular plant endemics: Phytogeographic patterns. Castanea 66: 50-82.
  3. 3.0 3.1 [[1]]NatureServe. Accessed: april 12, 2016
  4. Walker, J. and R. K. Peet (1983). "Composition and species diversity of pine-wiregrass savannas of the Green Swamp, North Carolina." Vegetatio 55: 163-179.
  5. Edwards, A. L. and A. S. Weakley (2001). "Population biology and management of rare plants in depression wetlands of the southeastern coastal plain, USA." Natural Areas Journal 21: 12-35.
  6. 6.0 6.1 6.2 Florida State University Robert K. Godfrey Herbarium database. URL: Last accessed: June 2014. Collectors: L. C. Anderson, J. R. Burkhalter, K. C. Burks, G. R. Cooley, S. Cooper, R. J. Eaton, A. Gholson, R. K. Godfrey, D. W. Hall, E. Keppner, L. Keppner, G. R. Knight, R. Kral, S. W. Leonard, D. L. Martin, S. McDaniel, R. A. Norris, A. Schmidt, G. Schultz, C. R. Slaughter, L. B. Trott, and C. E. Wood Jr. States and Counties: Florida: Bay, Calhoun, Clay, Columbia, Duval, Escambia, Franklin, Gadsden, Hamilton, Holmes, Jackson, Jefferson, Leon, Liberty, Marion, Polk, Suwannee, Taylor, Wakulla, Walton, and Washington. Georgia: Thomas.
  7. Nelson, G. PanFlora: Plant data for the eastern United States with emphasis on the Southeastern Coastal Plains, Florida, and the Florida Panhandle. Accessed: 7 DEC 2016
  8. Robertson, K.M. Unpublished data collected from Pebble Hill Fire Plots, Pebble Hill Plantation, Thomasville, Georgia.