Roadless Areas
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Carex latebracteata

Waterfall

Waterfall's Sedge

G3Vulnerable Found in 1 roadless area NatureServe Explorer →
G3VulnerableGlobal Rank
MediumThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.143779
Element CodePMCYP03730
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single nation
KingdomPlantae
PhylumAnthophyta
ClassMonocotyledoneae
OrderCyperales
FamilyCyperaceae
GenusCarex
Other Common Names
Waterfall's sedge (EN)
Concept Reference
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Conservation Status
Rank MethodLegacy Rank calculation - Excel v3.1x
Review Date2018-11-19
Change Date1986-04-08
Edition Date2018-11-19
Edition AuthorsD. Gries (1997), rev. A. Tomaino (2018)
Threat ImpactMedium
Range Extent5000-20,000 square km (about 2000-8000 square miles)
Number of Occurrences21 - 80
Rank Reasons
Known only from the Ouachita Mountains of Arkansas and Oklahoma. There are approximately 75 occurrences. Threats include logging and off-road vehicle use.
Range Extent Comments
Endemic to the Ouachita Mountains of Arkansas and Oklahoma (Flora of North America Editorial Committee 2002).
Occurrences Comments
There are approximately 58 extant occurrences in Arkansas, and 17 in Oklahoma (NatureServe Network Database as of October 2018).
Threat Impact Comments
Threats include logging and off-road vehicles (NatureServe Network Database as of October 2018).
Ecology & Habitat

Habitat

Known from steep, shaded slopes in rich, mesic to dry-mesic hardwood forests (Flora of North America Editorial Committee 2002).
Terrestrial Habitats
Forest/WoodlandForest - Hardwood
Other Nations (1)
United StatesN3
ProvinceRankNative
ArkansasS3Yes
OklahomaS3Yes
Threat Assessments
ThreatScopeSeverityTiming
5 - Biological resource useRestricted (11-30%)Serious or 31-70% pop. decline—
5.3 - Logging & wood harvestingRestricted (11-30%)Serious or 31-70% pop. decline—
6 - Human intrusions & disturbanceRestricted - smallModerate - slight—
6.1 - Recreational activitiesRestricted - smallModerate - slight—

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Plant Characteristics
Economic Value (Genus)No
Roadless Areas (1)
Arkansas (1)
AreaForestAcres
Bear MountainOuachita National Forest1,910
References (5)
  1. Flora of North America Editorial Committee (FNA). 2002b. Flora of North America north of Mexico. Vol. 23. Magnoliophyta: Commelinidae (in part): Cyperaceae. Oxford Univ. Press, New York. xxiv + 608 pp.
  2. Hoagland, B.W. and A. Buthod. 2009. The vascular flora of the Cucumber Creek Nature Preserve, LeFlore County, Oklahoma. Castanea 74(1): 78–87.
  3. Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
  4. Watson, L.E. 1989. Status survey of Carex latebracteata, Waterfall's sedge, in Arkansas and Oklahoma. Oklahoma Natural Heritage Inventory, Norman, Oklahoma. 10 pp.
  5. Weakley, A.S., and Southeastern Flora Team. 2025. Flora of the southeastern United States Web App. Edition of February 18, 2025. University of North Carolina Herbarium (NCU), North Carolina Botanical Garden, University of North Carolina, Chapel Hill. Online. Available: https://fsus.ncbg.unc.edu (accessed 2025).