Grass or grass-like · Cyperaceae
Slender spikerush
Eleocharis tenuis · includes its varieties and subspecies
Slender spikerush is recorded as native to 30 states and territories in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in 535 counties of those states by USDA PLANTS.
Key facts · USDA PLANTS
Slender spikerush at a glance
- Native in
- 535 counties, across 30 states and territories
- Estimated cold hardiness
- Zone 5a PLANTS minimum temperature −23°F
- Mature height
- 2.9 ft PLANTS mature height
- Light and water
- Full sun (shade-intolerant) Low water use
Estimated cold hardiness: zone 5a. PLANTS gives a minimum temperature of −23°F; zone 5a winters bottom out at −20°F, the coldest half-zone that stays within that limit.
Slender spikerush is recorded as native to 30 states and territories in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in 535 counties of those states by USDA PLANTS.
Counties where it is native
The 15 counties with the most ZIP codes among the 535 where it is listed.
Native counties by state
- Alabama 7 counties
- Arkansas 23 counties
- Connecticut statewide record
- Delaware 3 counties
- District of Columbia 1 county
- Georgia 3 counties
- Illinois 42 counties
- Indiana 17 counties
- Iowa 1 county
- Kansas 4 counties
- Kentucky 42 counties
- Louisiana 17 counties
- Maine 16 counties
- Massachusetts 14 counties
- Missouri 40 counties
- Nebraska 4 counties
- New Hampshire 10 counties
- New Jersey 19 counties
- New York 8 counties
- North Carolina 44 counties
- Ohio 12 counties
- Oklahoma 6 counties
- Pennsylvania 52 counties
- Rhode Island 4 counties
- South Carolina 6 counties
- Tennessee 33 counties
- Texas 10 counties
- Vermont 13 counties
- Virginia 64 counties
- West Virginia 20 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
- Perennial
- Mature height
- 2.9 ft
- Growth rate
- Moderate
- Growth form
- Rhizomatous
- Shape
- Erect
- Lifespan
- Moderate
- Active growth period
- Spring
Light and water
- Shade tolerance
- Intolerant (full sun (shade-intolerant))
- Moisture use
- Low water use
- Drought tolerance
- Low
- Tolerance of waterlogged soil
- Medium
- Precipitation range
- 24 to 60 in per year
Soil
- Soil textures
- Coarse, medium and fine
- pH range
- 6.2 to 7
- Lime (CaCO₃) tolerance
- Low
- Salinity tolerance
- None
- Fertility requirement
- Medium
- Minimum root depth
- 14 in
Climate
- Minimum temperature
- −23°F
- Estimated cold hardiness
- Zone 5a and warmer
- Minimum frost-free days
- 120
- Fire tolerance
- Medium
Flowers, leaves and fruit
- Flower color
- Brown
- Showy flowers
- No
- Bloom period
- Late Spring
- Foliage color
- Dark Green
- Showy in fall
- No
- Keeps leaves
- No
- Fruit color
- Green
Other
- Toxicity
- None
- Nitrogen fixation
- None
- Nursery availability
- No Known Source
- Family
- Cyperaceae
- PLANTS symbol
- ELTE
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
- Eleocharis tenuis (PLANTS symbol ELTE), including 2 varieties and subspecies folded into the species.
- 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