Index / Search / Cyperus polystachyos

§1 Plant

Cyperus polystachyos Rottb.

vernacular manyspike flatsedge — species · Cyperaceae


USDA
CYPO
GBIF
2730407
Rank
species
manyspike flatsedge (Cyperus polystachyos)
Platephotograph · overlander (Gerald Krygsman)CC BY-NC source · iNaturalist ↗

§2Habit & range

Habit and range

Growth habit
Graminoid
Duration
Annual, Perennial
Group
Monocot
Family
Cyperaceae Juss.
Genus
Cyperus
§2a

Native status, by region

  • HI Hawaii Native
  • L48 Lower 48 States Native
  • PB Pacific Basin (except Hawaii) Introduced
  • PR Puerto Rico Native
  • VI U.S. Virgin Islands Native
§2b

County-level range

· 307 counties across 19 states/territories
Legend Native · 307 Introduced · 0 Both · 0 Hover a county for detail.

§3Cultivation specs · USDA

Recorded by the USDA Plant Materials Program.

§3a

Tolerances

Drought
Low
Shade
High
Moisture use
Medium
Fire
None
Salinity
Low
Anaerobic
Medium
CaCO₃
Low
Hedging
None
§3b

Climate & soil

Cold tolerance
47 °F minimum
Frost-free days
100 min.
Precipitation
32–55 in/yr
pH range
4.5–6.5
Root depth
8 in min.
Fertility need
Low
Soil texture
coarse, medium, fine
§3c

Form & growth

Growth form
Bunch
Growth rate
Moderate
Lifespan
Short
Mature height
1.6 ft
Foliage texture
Fine
Foliage colour
Green
Porosity (summer)
Moderate
Porosity (winter)
Porous
Flower colour
Green
Fruit colour
Brown
Fire resistant
No
N fixation
None
Toxicity
None
§3d

Reproduction

Bloom period
Mid Summer
Seed abundance
Medium
Seed begins
Summer
Seed ends
Fall
Spread rate
Moderate
Stratify
No
Propagation
sprigs
§3e

Use & availability

Commercial availability
No Known Source
Nursery stock
No
Palatable, human
No
Lumber
No
Christmas tree
No

§4Counties, by state

Recorded in 307 counties across 19 states/territories.

Alabama view state ↗ 8 N
Arkansas view state ↗ 8 N
Delaware view state ↗ 3 N
District of Columbia view state ↗ 1 N
Florida view state ↗ 59 N
Georgia view state ↗ 15 N
Illinois view state ↗ 2 N
Kentucky view state ↗ 12 N
Louisiana view state ↗ 45 N
Massachusetts view state ↗ 9 N
Mississippi view state ↗ 10 N
Missouri view state ↗ 5 N
New Jersey view state ↗ 9 N
New York view state ↗ 5 N
North Carolina view state ↗ 44 N
Pennsylvania view state ↗ 1 N
South Carolina view state ↗ 21 N
Tennessee view state ↗ 14 N
Virginia view state ↗ 36 N

§5Sources & provenance

USDA PLANTS

Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.

plants.usda.gov/CYPO ↗

GBIF Backbone

Canonical taxonomic identity, synonym resolution, cross-refs. CC0.

gbif.org/species/2730407 ↗

Record version

Cached and built locally. Source version on this record:

usda-plants-mt-2026-05-26

fetched 2026-05-26T08:39:52Z