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FamilyScientific Name Common NameHabitatDistributionImage
CyperaceaeRhynchospora albaNorthern White BeaksedgeMountain bogs and fens, peaty situations in the Coastal Plain, such as low pocosins in peat domes or large Carolina bays, and floating peat mats in limesink (doline) ponds and bay lakes, also in seepage bogs with abundant Sphagnum, generally occurring in the most open, harshest, and peatiest areas.Circumboreal, in North America from NL (Labrador) west to AK, south to SC, e. TN, ne. TN (where perhaps extirpated), IL, SK, ID, and CA; disjunct in se. GA (Charlton County, at the Okefenokee Swamp) (Williges & Loftin 1995), s. AL (Escambia County; specimen at CLEMS), and the mountains of Puerto Rico.image of plant
CyperaceaeRhynchospora baldwiniiBaldwin's BeaksedgeWet pine savannas, seepages.Se. NC south to s. FL and west to LA.image of plant
CyperaceaeRhynchospora caducaAngle-stem BeaksedgeTidal swamps, pine savannas and flatwoods, hardwood swamps, interdune ponds, acidic meadows and seeps, other wet areas.E. and c. VA south to s. FL and west to TX, OK, and AR, north in the interior to sc. TN. This species is found at a few sites in the mountains of GA.image of plant
CyperaceaeRhynchospora capillaceaNeedle BeaksedgeCalcareous fens and seeps.NL (Newfoundland) west to SK, south to sw. VA, ne. TN (Campbell County), and n. AR.image of plant
CyperaceaeRhynchospora capitellataBrownish BeaksedgeBogs and fens, seepages, and wet rock outcrops in the Mountains and upper Piedmont, also in wet habitats in the Coastal Plain of ne. NC and e. VA, also found in a variety of wet habitats. The only common beaksedge in the higher Mountains of our region.NB west to WI and n. NE, south to GA, AL, MS; disjunct in sw. OR and CA.image of plant
CyperaceaeRhynchospora careyanaCarey's Horned BeaksedgeLimesink (doline) depression ponds and in intermittently flooded depression meadows, mucky pondshores.Apparently ranging from se. NC south to FL, but the range poorly known because of confusion with R. inundata, from which it is perhaps not specifically distinct.image of plant
CyperaceaeRhynchospora cephalantha var. attenuataSmall Bunched BeaksedgePine savannas, sandhill seeps, openings in streamhead pocosins.The range of this variety is poorly known; it is reported by Gale (1944) from NC, SC, AL, and MS. Recent collections from MD and VA extend the range. See discussion in Sorrie et al. (1997).image of plant
CyperaceaeRhynchospora cephalantha var. cephalanthaCommon Bunched BeaksedgePine savannas, wet roadsides, ditches, wet powerline rights-of-way.S. NJ south to s. FL and west to e. TX.image of plant
CyperaceaeRhynchospora chalarocephalaLoose-headed BeaksedgePine savannas, limesink ponds, and swamps, often weedy and occurring in abundance on wet roadsides and in powerline corridors.S. NJ south to c. FL and west to LA; disjunct in nw. GA (Jones & Coile 1988) and sc. TN (Coffee and Warren counties).image of plant
CyperaceaeRhynchospora chapmaniiChapman's BeaksedgePine savannas, seepage bogs, sandy margins of limesink (doline) ponds, and other wet, acid habitats.Se. NC south to s. FL and west to e. LA; Belize, Nicaragua.image of plant
CyperaceaeRhynchospora ciliarisFringed BeaksedgePine savannas, longleaf pine sandhill seeps.Se. NC south to s. FL and west to e. LA.image of plant
CyperaceaeRhynchospora colorataNarrowleaf Whitetop SedgeWet pine savannas, ditches, dune swales, calcareous glades, usually in places with some source of alkalinity (calcareous rocks, shell, brackish water).Se. VA south to FL and west to TX; Mexico (Tabasco, Chiapas, Yucatán), Belize, Guatemala, Costa Rica, Venezuela; West Indies.image of plant
CyperaceaeRhynchospora compressaPagoda BeaksedgePine savannas.Se. NC south to Panhandle FL, west to e. LA. This species was reported for SC (Kartesz 1999), based on the South Carolina Plant Atlas (http://cricket.biol.sc.edu/herb/); McMillan (pers. comm.) states that the record is in error, based on a misidentified specimen. The species occurs in sc. GA (Jones & Coile 1988) and has since been found in SC by McMillan (2003) and in NC (Ungberg 2022).image of plant
CyperaceaeRhynchospora corniculataShort-bristled Horned BeaksedgePondcypress savannas in Carolina bays, swamp forests, other wetlands.Sometimes divided into two varieties: var. corniculata ranges from DE south to FL and west to LA, extending north into KY and MO; also in the West Indies.image of plant
CyperaceaeRhynchospora crinipesAlabama BeaksedgeSand-clay bars and peaty stream banks of blackwater streams.Jul-Sep. Sc. NC (Sorrie et al. 1997) through sc. GA to FL Panhandle, west to s. AL; very scattered in occurrence.image of plant
CyperaceaeRhynchospora culixaGeorgia BeaksedgePine savannas, pine flatwoods.GA and FL.image of plant
CyperaceaeRhynchospora curtissiiPine flatwoods and bogs.An East Gulf Coastal Plain endemic, in Panhandle FL, AL, and s. MS (Sorrie & Leonard 1999); also reported from SC by Kral (1996) and for NC and SC by Kartesz (1999), but specimens so annotated are misidentified.image of plant
CyperaceaeRhynchospora debilisSavanna BeaksedgePine savannas, longleaf pine sandhill seeps, acid seeps and flatwoods inland.Se. VA south to n. peninsular FL and west to se. TX (Brown & Marcus 1998).image of plant
CyperaceaeRhynchospora decurrensSwamp-forest BeaksedgeSwamp forests and river marshes, especially along blackwater rivers.Se. NC and e. SC (McMillan & Porcher 2005) south to c. peninsular FL and west to s. MS (Sorrie & Leonard 1999).image of plant
CyperaceaeRhynchospora distansNarrow-fruited Fascicled BeaksedgePine savannas and limesink ponds.Se. VA south to s. FL and west to s. MS (Sorrie & Leonard 1999); West Indies.image of plant
CyperaceaeRhynchospora divergensWhite-seeded BeaksedgeWet pine savannas, especially where underlain by 'marl'.Se. NC south to s. FL and west to se. TX; Bahamas; Mexico (Chiapas), Belize.image of plant
CyperaceaeRhynchospora elliottiiElliott's BeaksedgePine savannas, ditches, other wet habitats, often weedy.Se. NC south to c. peninsular FL and west to e. TX; Bahamas.image of plant
CyperaceaeRhynchospora fascicularisFascicled BeaksedgePine savannas, limesink ponds, ditches.Se. VA south to s. FL and west to se. TX; West Indies.image of plant
CyperaceaeRhynchospora fernaldiiFernald's BeaksedgePine flatwoods.S. GA south to s. FL, west to s. MS.image of plant
CyperaceaeRhynchospora filifoliaThreadleaved BeaksedgeSandy shores of limesink (doline) depressions, especially at the lower margin, wet pine savannas.S. NJ south to c. FL and west to e. TX; Cuba, Mexico (Tabasco), Belize, Nicaragua.image of plant
CyperaceaeRhynchospora fuscaBrown BeaksedgeAtlantic white-cedar swamps, sea-level fens, fens.Circumboreal, in North America from NL (Labrador) west to SK, south to NJ, e. PA (Rhoads & Block 2007), MD, DE, WV (FNA; Harmon, Ford-Werntz, & Grafton 2006), IN, IL, and MN.image of plant
CyperaceaeRhynchospora galeanaShort-bristle BeaksedgeWet pine savannas and associated wetlands.Se. NC south to s. FL and west to s. MS; West Indies.image of plant
CyperaceaeRhynchospora globularisGlobe BeaksedgeSandy or peaty depressions, wet ditches, powerline corridors, pine savannas, inland in acidic seeps and flatwoods.DE south to s. FL and west to c. TX and OK; north in the interior to nc. TN; disjunct around the Great Lakes.image of plant
CyperaceaeRhynchospora glomerataClustered BeaksedgePine savannas, bogs, acidic seeps inland, other wet habitats.S. NJ south to ne. FL, FL Panhandle, and west to e. TX, and inland in KY, TN, AR, and KS.image of plant
CyperaceaeRhynchospora gracilentaSlender BeaksedgePine savannas, bogs, seeps.NJ south to ne. FL, FL Panhandle, and west to e. TX, north in the inland to nc. TN, se. KY (Brock 2020), and AR; Cuba; Mexico (Chiapas), Belize, Nicaragua.image of plant
CyperaceaeRhynchospora grayiGray's BeaksedgeLongleaf pine sandhills and other dry, sandy sites, pine rocklands.Se. VA south to s. FL, west to e. TX.image of plant
CyperaceaeRhynchospora harperiHarper's BeaksedgePeaty limesink depression ponds (dolines), from standing water to the upper margins of the pond-shore.Se. NC south to sc. peninsular FL and west to s. AL and s. MS (Sorrie & Leonard 1999); Belize. See Nelson (1993) for first SC record, and LeBlond (1997) for additional information on the species, especially its distribution.image of plant
CyperaceaeRhynchospora harveyiHarvey's BeaksedgePine savannas in the Coastal Plain, seepage bogs in the Sandhills, bogs in the Mountains and Piedmont.Se. VA south to ne. FL, FL Panhandle, and west to TX and OK, and north in the interior to nc. TN and MO.image of plant
CyperaceaeRhynchospora inexpansaNodding BeaksedgeWet pine savannas, streamhead pocosins where frequently burned, usually in peaty situations, often weedy, colonizing disturbances.Se. VA south to ne. FL, FL Panhandle, and west to e. TX, AR, and se. OK (Singhurst, Mink, & Holmes 2012); West Indies.image of plant
CyperaceaeRhynchospora inundataNarrow-fruit Horned BeaksedgeIn water of limesink dolines and clay-based Carolina bays. usually found in shallow water or at the lower margins of pond-shores, typically producing large colonies.Apparently ranging from e. MA south to s. FL and west to e. TX (the range, however, obscured by confusion with R. careyana) (Singhurst, Mink, & Holmes 2010). See Reid (2021) for information about its occurrence in Vermilion Parish, w. Louisiana.image of plant
CyperaceaeRhynchospora knieskerniiMoist sandy/peaty swales in Coastal Plain pinelands.Endemic in NJ and DE. It has been reported, in error, from SC.image of plant
CyperaceaeRhynchospora latifoliaBroadleaf Whitetop SedgeWet pine savannas.A Southeastern Coastal Plain endemic: se. NC south to s. FL and west to se. TX; disjunct in sc. TN (Coffee County).image of plant
CyperaceaeRhynchospora leptocarpaSeepage bogs, pocosins, especially in openings.Coastal Plain: E. NC south to ne. FL, Panhandle FL, west to se. LA; disjunct in s. NJ. Its occurrence in NC is reported by Sorrie et al. (1997). Its occurrence in NJ is reported by Moyer & Naczi (2016).image of plant
CyperaceaeRhynchospora macraSouthern White BeaksedgeSphagnum bogs in frequently-burned streamhead pocosins, and in sandhill seepage bogs.Sc. NC south to ne. FL, FL Panhandle, and west to se. TX; Nicaragua; Puerto Rico.image of plant
CyperaceaeRhynchospora macrostachyaTall Horned BeaksedgeMarshes, tidal marshes, swamps, upland depression ponds, other wetlands.E. MA south to ne. FL and west to e. TX, north in the interior to sc. TN, s. MI, MO, and KS; disjunct (historically) in s. ME.image of plant
CyperaceaeRhynchospora megalocarpaSandhill BeaksedgeXeric longleaf pine sandhills, Florida scrub.Se. NC south to s. FL, west to MS.image of plant
CyperaceaeRhynchospora microcarpaSouthern BeaksedgeSwamp forests, maritime wet grasslands, wet pine savannas, marl prairies, strand swamps, cypress woodlands.E. NC south to s. FL and west to TX; West Indies (Cuba, Puerto Rico), Bahamas, Belize.image of plant
CyperaceaeRhynchospora microcephalaSmall-headed BeaksedgePine savannas, longleaf pine sandhill-pocosin ecotones.S. NJ south to s. FL and west to MS; Cuba.image of plant
CyperaceaeRhynchospora miliaceaMillet BeaksedgeSwamp forests, including maritime swamp forests.Se. VA south to s. FL and west to e. TX; West Indies.image of plant
CyperaceaeRhynchospora mixtaMingled BeaksedgeSwamp forests, marshes.Ne. NC south to c. peninsular FL and west to e. TX.image of plant
CyperaceaeRhynchospora nitensShort-beaked BeaksedgeWet pine savannas, limesink (doline) ponds, ditches, disturbed wet areas, often weedy.Primarily a Coastal Plain endemic: MA south to s. FL and west to se. TX; lowlands around the Great Lakes; West Indies, Belize, Nicaragua.image of plant
CyperaceaeRhynchospora odorataFragrant BeaksedgeMaritime swamp forests and maritime wet grasslands.E. NC south to s. FL; West Indies and Bahamas. First reported for SC by Nelson & Kelly (1997).image of plant
CyperaceaeRhynchospora oliganthaFeather-bristled BeaksedgeWet pine savannas, sandhill-pocosin ecotones, sandhill seepage bogs, sea-level fens, usually in rather peaty, acid places.S. NJ south to ne. FL, Panhandle FL, and west to se. TX; Belize, Nicaragua. Considered to be absent between NC and NJ prior to its discovery in e. VA (Fleming & Ludwig 1996).image of plant
CyperaceaeRhynchospora pallidaPale BeaksedgePine savanna-pocosin and sandhill-pocosin ecotones, peaty seepage bogs, usually growing in or near Sphagnum.Long Island, NY south through NJ to nc. SC, primarily in NJ and NC. See Nelson (1993) for first SC record.image of plant
CyperaceaeRhynchospora perplexaPineland BeaksedgePine savannas, sandhill seepage bogs, inland in seepage bogs and acidic flatwoods.E. NC south to ne. FL, FL Panhandle, and west to TX, and north in the interior to ec. TN; West Indies.image of plant
CyperaceaeRhynchospora pinetorumSmall's BeaksedgeWet calcareous pine savannas.FL west to MS (Sorrie & Leonard 1999) and e. TX, apparently somewhat disjunct to se. NC and ne. SC; also in the West Indies.image of plant
CyperaceaeRhynchospora pleianthaCoastal BeaksedgeSandy margins of limesink depression ponds (dolines), typically in shallow water or at the lower margins of pond-shores.Se. NC south to c. peninsular FL, and Panhandle FL, west to se. AL; also in Cuba.image of plant
CyperaceaeRhynchospora plumosaPlumed BeaksedgePine savannas, sandhill-pocosin ecotones, especially where the sandy surface dries out in summer (on spodosols such as the Leon soil series).NC south to s. FL and west to se. TX; West Indies (Cuba); Belize, Honduras, Nicaragua.image of plant
CyperaceaeRhynchospora punctataPineland BeaksedgeWet pine savannas, pitcherplant bogs.S. GA south to ne. FL.image of plant
CyperaceaeRhynchospora pusillaDwarf BeaksedgeWet pine savannas, especially in exposed wet sands of disturbed ground, such as roadsides.E. NC south to s. FL and west to e. TX; West Indies, Mexico (Tabasco, Chiapas), Belize, Guatemala, Nicaragua.image of plant
CyperaceaeRhynchospora rarifloraFew-flower BeaksedgeWet pine savannas, seepage bogs in the fall-line Sandhills, bogs in the Piedmont and Mountains.S. NJ south to s. FL and west to e. TX; rarely inland, as in ec. TN, w. NC, nw. SC, n. GA, etc.; West Indies; Belize, Honduras, Nicaragua.image of plant
CyperaceaeRhynchospora cymosaCymose BeaksedgeWet to dry low grounds, diabase glades, ditches, powerline corridors, pine savannas, moist seepage on rock outcrops, other saturated areas.NJ south to FL, west to TX, north in the interior to nc. TN and around the Great Lakes; CA; West Indies; Central America.image of plant
CyperaceaeRhynchospora saxicolaSeepages on granitic outcrops and Altamaha Grit glades.W. SC south into the Piedmont and rarely Coastal Plain of c. GA and ne. and ec. AL (Kral 1999).image of plant
CyperaceaeRhynchospora scirpoidesLong-beak BeaksedgeLimesink ponds, usually at the lower margins of pond-shores, wet pine savannas, beaver ponds, and other wetlands with "drawdown" hydrology.Se. MA south to n. peninsular FL, Panhandle FL, s. MS (Sorrie & Leonard 1999), se. OK, and TX (Singhurst, Bridges, & Holmes 2007); disjunct in the lowlands around the Great Lakes.image of plant
CyperaceaeRhynchospora solitariaAutumn BeaksedgeWet, sandy/peaty depressions.Known from a few sites in the Gulf Coastal Plain of GA (Colquitt, Irwin, Tift, and Turner counties) (Sorrie 1998b) and SC (Berkeley County) (McMillan & Porcher 2005).image of plant
CyperaceaeRhynchospora species 2Croatan BeaksedgeWet pine savanna and pocosin ecotone, known from a single spodosol savanna site in Croatan National Forest, and growing with Ctenium aromaticum, Pinguicula caerulea, Sarracenia flava, Dionaea muscipula, Zenobia pulverulenta, Polygala ramosa, and Eriocaulon decangulare var. decangulare.
CyperaceaeRhynchospora stenophyllaCoastal Bog BeaksedgePeaty seepage bogs, streamhead pocosins, savanna-pocosin ecotones, usually growing in Sphagnum, especially where frequently burned.Se. NC south to nw. FL and west to s. MS; disjunct in se. VA (Southampton Co.) (Belden et al. 2004). Reported for GA by Sorrie (1998b).image of plant
CyperaceaeRhynchospora sulcataGrooved BeaksedgeLimesink ponds (dolines), Carolina bays, other seasonally ponded depressional wetlands.Se. NC south to Panhandle FL; West Indies (Cuba); Central America and perhaps n. South America. See Ungberg (2022) for discussion of its occurrence in NC.image of plant
CyperaceaeRhynchospora thorneiThorne's BeaksedgeIn open sands in wet pine savannas underlain by marl, and nearby roadsides, moist limestone barrens and prairies in seasonal seepage (GA, MS).Known from about 35 locations, in Coastal Plain of NC, SC, GA, ne. FL, Panhandle FL, and AL; also in Ridge and Valley region of AL and GA, and Black Belt region of AL. Discovered in SC (Georgetown Co.) by McMillan (2003). Discovered for MS (J. Kees, 2022).image of plant
CyperaceaeRhynchospora torreyanaTorrey's BeaksedgePine savannas, seepage bogs, often weedy.Se. MA south to GA, AL, and MS.image of plant
CyperaceaeRhynchospora tracyiTracy's BeaksedgePondcypress savannas and graminoid-dominated depressions, in small, clay-based Carolina bays or shallow limesink ponds (dolines), typically in shallow water or at the lower margins of pond-shores; in s. FL often a monospecific dominant in marl prairies and marshes.S. NC south to s. FL, west to s. MS (Sorrie & Leonard 1999); disjunct in sw. LA and e. TX; West Indies (Bahamas, Cuba, Hispaniola); Central America (Belize).image of plant
CyperaceaeRhynchospora wrightianaWright's BeaksedgeWet pine savannas.Se. VA south to c. FL and west to s. AL and s. MS; West Indies (Cuba, Puerto Rico).image of plant
CyperaceaeRhynchospora brachychaetaCypress ponds, other depressions.E. SC south to Panhandle FL and s. AL and s. MS; West Indies (w. Cuba, Hispaniola, Puerto Rico; Central America (Belize, Nicaragua).image of plant
CyperaceaeRhynchospora indianolensisIndianola BeaksedgeCoastal prairies, ditches, bottomland forests.Coastal Plain of TX.image of plant
CyperaceaeRhynchospora pineticolaPinebarren BeaksedgeSandhills, scrub, other dry sandy pinelands.Ne. FL and e. Panhandle FL south to s. FL; Cuba.image of plant
CyperaceaeRhynchospora marlinianaMarlins’ BeaksedgeWet pine savannas and Florida wet prairies.FL Panhandle west through AL to MS; Central America in se. Mexico (Tabasco), Belize, ne. Honduras, and ne. Nicaragua.image of plant
CyperaceaeRhynchospora eximiaBaldrushPine flatwoods pond margins, mesic pine flatwoods.Peninsular FL; West Indies; Mexico.image of plant
CyperaceaeRhynchospora floridensisFlorida Whitetop SedgePine rocklands, marl prairies.S. FL; West Indies (Bahamas); Mexico (Chiapas, Yucatán) and Central America (Belize).image of plant
CyperaceaeRhynchospora megaplumosaLongbristled BeaksedgeScrubby pine flatwoods.Endemic to the c. and w. FL peninsula (Highlands, Polk, Hillsborough, Manatee, and Sarasota counties).image of plant
CyperaceaeRhynchospora niveaSnowy Whitetop SedgeCreek beds and seepages over limestone or other calcareous substrates.Se. and s. OK south c. TX (especially the Edwards Plateau).
CyperaceaeRhynchospora angustaNarrow-fruited BeaksedgeWet prairies.AR, LA, se. OK, and e. TX.image of plant
CyperaceaeRhynchospora corymbosaDitches, disturbed wetlands.Native of Old World tropics. See Barger et al. (2012) for additional information about the AL occurrence, as R. indianolensis.
CyperaceaeRhynchospora species 3Seasonally ponded or saturated wetlands.Endemic to the Coastal Plain of s. NJ, DE, and MD.
CyperaceaeRhynchospora obliterataTexas BeaksedgePond shores with fluctuating water levels, wet grasslands.E. TX and e. AR. Not seen since 1884. The known collections (from Gale 1944) are: Arkansas, borders of ponds, east Arkansas (vicinity of Grand Prairie), July 1884, Harvey 12 (GH); Texas, Harris Co., Cypress City, Aug 1877, Boll 793 (MO); Texas, Waller Co., ponds, Hempstead, 16 Apr 1872, Hall 709 (holotype GH; isotypes MO, NY, US); Texas, Calhoun Co., prairie near Indianola, 30 May 1869, Ravenel 144 (NY, mixed with R. recognita).image of plant
CyperaceaeRhynchospora stilettoStiletto BeaksedgeFens, calcareous wet prairies, limestone river scour outcrops.Sc. TN to ne. AL; se. MO and adjacent ne. AR.image of plant
CyperaceaeRhynchospora species 4Spring BeaksedgeDepression ponds and other seasonally saturated to ponded, fire-maintained wetlands.FL.image of plant

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