Warty Sedge, Carex verrucosa
|Warty Sedge, Carex verrucosa. Ralph E. Simmons State Forest, Nassau County. Photo CC BY-NC ericpo1|
|Warty Sedge, Carex verrucosa. Watson Island State Forest, St. Johns County. Photo CC BY-NC ericpo1|
|Flowering Warty Sedge, Carex verrucosa, Avon Park Air Force Range, Polk County, FL. Photo CC BY-NC Edwin Bridges|
C. glaucescens was described in 1817 by botanist Gotthilf Muhlenberg, for whom the genus Muhlenbergia is named (the very common landscape grass Hairawn Muhly, M. capillaris, is a member of that genus)2,3. It is vouchered for 45 out of the 67 counties in Florida. It can be found throughout Florida, from the Green Swamp (map) to the Chuluota Wilderness Area (map) and scattered throughout the panhandle3. It's also a fairly impressive full-sized plant, as you can see.
|Warty Sedge, Carex verrucosa, in a hydric flatwoods in Okaloosa County. Photo CC BY-NC D. Tilson|
Warty Sedge is within the Glaucescentes section of the Carex genus4, which means that it is closely related to other chunky-fruited Florida sedges: Cypress Swamp Sedge (C. joorii) and Clustered Sedge (C. glaucescens). We profiled Clustered Sedge last week for Sedge Sunday.
Clustered Sedge is listed as threatened in Mississipi, North Carolina, and Texas5. This sedge was mentioned in a Palmetto article from 2013 by Linda Curtis6.
Go out and photograph some sedges!
References Elliott. 1824. Sketch Bot. S. Carolina. Vol. 2 p553. link
 USDA. 2019. Carex verrucosa Muhl. warty sedge. PLANTS Database. link
 Muhlenberg, Gotthilf. 1817. Descriptio uberior graminum et plantarum calamariarum Americae septentrionalis indigenarum et cicurum. Philadelphiae, Conrad p.261 link
 Simpson, et al. 2007. Phylogeny of Cyperaceae Based on DNA Sequence Data - a New rbcL Analysis. Alisco 23, p. 72-83. link
 NatureServe. 2019. Carex verrucosaMuhl. Warty Sedge link
 Curtis, Linda. 2013. Carex - Where are they? The Palmetto 30:4 p. 12-14. Florida Native Plant Society. link
Further readingSoutheastern Flora. 2019. Carex verrucosa. link Waxy Sedge (Carex verrucosa). iNaturalist link
Kew Botanical Gardens. Carex verricosa. Plants of the World Online. link
Matson, Chris. 2009. Graminoids (Families Poaceae, Juncaceae and Cyperaceae). The Univeristy of Georgia Center for Invasive Species and Ecosystem Health. link
by Valerie Anderson, staff | email