Grass or grass-like · Cyperaceae
Slender flatsedge
Cyperus bipartitus
Slender flatsedge is recorded as native to 41 states and territories in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in 766 counties of those states by USDA PLANTS.
Key facts · USDA PLANTS
Slender flatsedge at a glance
- Native in
- 766 counties, across 41 states and territories
- Estimated cold hardiness
- Zone 10b PLANTS minimum temperature 32°F
- Mature height
- 5 ft PLANTS mature height
- Light and water
- Full sun (shade-intolerant) Medium water use
Estimated cold hardiness: zone 10b. PLANTS gives a minimum temperature of 32°F; zone 10b winters bottom out at 35°F, the coldest half-zone that stays within that limit.
Slender flatsedge is recorded as native to 41 states and territories in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in 766 counties of those states by USDA PLANTS.
Counties where it is native
The 15 counties with the most ZIP codes among the 766 where it is listed.
Native counties by state
- Alabama 1 county
- Arkansas 8 counties
- California 12 counties
- Colorado 4 counties
- Connecticut statewide record
- Delaware 1 county
- District of Columbia 1 county
- Florida 1 county
- Georgia 1 county
- Illinois 50 counties
- Indiana 44 counties
- Iowa 12 counties
- Kansas 18 counties
- Kentucky 44 counties
- Maine 8 counties
- Massachusetts 12 counties
- Michigan 48 counties
- Minnesota 44 counties
- Mississippi 1 county
- Missouri 46 counties
- Nebraska 29 counties
- New Hampshire 7 counties
- New Jersey 20 counties
- New Mexico 3 counties
- New York 49 counties
- North Carolina 27 counties
- North Dakota 3 counties
- Ohio 39 counties
- Oklahoma 2 counties
- Oregon 7 counties
- Pennsylvania 51 counties
- Rhode Island 4 counties
- South Dakota 2 counties
- Tennessee 20 counties
- Texas 1 county
- Utah 1 county
- Vermont 14 counties
- Virginia 47 counties
- Washington 10 counties
- West Virginia 18 counties
- Wisconsin 56 counties
Growing traits
Values from the PLANTS characteristics record. “Not recorded” means PLANTS has no value; nothing here is estimated except the zone.
Growth
- Growth habit
- Graminoid
- Duration
- Annual
- Mature height
- 5 ft
- Growth rate
- Rapid
- Growth form
- Bunch
- Shape
- Semi-Erect
- Lifespan
- Not recorded
- Active growth period
- Spring, Summer, Fall
Light and water
- Shade tolerance
- Intolerant (full sun (shade-intolerant))
- Moisture use
- Medium water use
- Drought tolerance
- Low
- Tolerance of waterlogged soil
- High
- Precipitation range
- 30 to 50 in per year
Soil
- Soil textures
- Coarse, medium and fine
- pH range
- 4.5 to 6.5
- Lime (CaCO₃) tolerance
- Medium
- Salinity tolerance
- None
- Fertility requirement
- Medium
- Minimum root depth
- 14 in
Climate
- Minimum temperature
- 32°F
- Estimated cold hardiness
- Zone 10b and warmer
- Minimum frost-free days
- 120
- Fire tolerance
- Low
Flowers, leaves and fruit
- Flower color
- Green
- Showy flowers
- No
- Bloom period
- Mid Summer
- Foliage color
- Green
- Showy in fall
- No
- Keeps leaves
- No
- Fruit color
- Brown
Other
- Toxicity
- None
- Nitrogen fixation
- None
- Nursery availability
- No Known Source
- Family
- Cyperaceae
- PLANTS symbol
- CYBI6
Source & data date
- Source
- USDA NRCS PLANTS Database: county distribution records, native status and plant characteristics. CC0 (public domain dedication, per the data.gov catalog record).
- Kew’s World Checklist of Vascular Plants (WCVP): native or introduced status by state. CC BY 3.0.
- USGS US-RIIS (ver. 2.0): species listed as introduced are excluded. CC0.
- Citation
- USDA, NRCS. 2026. The PLANTS Database (https://plants.usda.gov, 11/04/2026). National Plant Data Team, Greensboro, NC USA.
- Govaerts R. (ed.) (2026). WCVP: World Checklist of Vascular Plants. Facilitated by the Royal Botanic Gardens, Kew. Data file dated 2026-06-04, http://sftp.kew.org/pub/data-repositories/WCVP/ (retrieved 2026-11-04). Paper: Govaerts R. et al. (2021) The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. Scientific Data 8, 215.
- Data date
- Retrieved from PLANTS on November 4, 2026; WCVP data file dated June 4, 2026.
- Scope
- Cyperus bipartitus (PLANTS symbol CYBI6).
- Method
- A species is listed when it is recorded as native to the state in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in the county by USDA PLANTS. Species PLANTS labels both native and introduced are listed separately. Full method · All sources