Rhynchospora inundata(Oakes) Fernald

narrowfruit horned beaksedge

WFO wfo-0000517620 Accepted WFO 2026-06 8 photographs CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Rhynchospora inundata, photographed by Robert Webster
fig. a Robert Webster, CC BY-SA 4.0 / 2021-04-18 / obs. 122295442
Rhynchospora inundata, photographed by Jay Horn
fig. b Jay Horn, CC BY 4.0 / obs. 33841789
Rhynchospora inundata, photographed by mark-groeneveld
fig. c mark-groeneveld, CC BY 4.0 / obs. 172888403
Rhynchospora inundata, photographed by Jay Horn
fig. d Jay Horn, CC BY 4.0 / obs. 199514458
Rhynchospora inundata, photographed by Tom Field
fig. e Tom Field, CC BY 4.0 / obs. 169052136
Rhynchospora inundata, photographed by Scott Ward
fig. f Scott Ward, CC BY 4.0 / obs. 149391164
Rhynchospora inundata, photographed by Jay Horn
fig. g Jay Horn, CC BY 4.0 / obs. 147645470
Rhynchospora inundata, photographed by Jay Horn
fig. h Jay Horn, CC BY 4.0 / obs. 147111653

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 14 botanical countries

Regions where Rhynchospora inundata is native: Alabama, Delaware, Florida, Georgia, Louisiana, Maryland, Massachusetts, Mississippi, New Jersey, New York, North Carolina, Rhode I., South Carolina, Virginia AlabamaFloridaGeorgiaLouisianaMarylandMassachusettsMississippiNew JerseyNew YorkNorth CarolinaSouth CarolinaVirginia DelawareRhode I.
Native distribution of Rhynchospora inundata, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Alabama ALA NORTHERN AMERICA
Delaware DEL
Florida FLA
Georgia GEO
Louisiana LOU
Maryland MRY
Massachusetts MAS
Mississippi MSI
New Jersey NWJ
New York NWY
North Carolina NCA
Rhode I. RHO
South Carolina SCA
Virginia VRG

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Also published as 3 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Ceratoschoenus inundatus (Oakes) House
  • Ceratoschoenus macrostachys var. inundatus Oakes
  • Rhynchospora macrostachya var. inundata (Oakes) Fernald

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
  4. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.