Index / Search / Cyperus difformis
§1 Plant
Cyperus difformis L.
vernacular variable flatsedge — species · Cyperaceae
§2Habit & range
Habit and range
- Growth habit
- Graminoid
- Duration
- Annual
- Group
- Monocot
- Family
- Cyperaceae Juss.
- Genus
- Cyperus
§2a
Native status, by region
- HI Hawaii Introduced
- L48 Lower 48 States Introduced
- PB Pacific Basin (except Hawaii) Native
- PR Puerto Rico Introduced
§2b
County-level range
· 109 counties across 22 states/territories§3Cultivation
No cultivation specs.
USDA has not characterised this taxon. Roughly four out of five plants in the database lack the detailed cultivation record present here — typically because they have not been the focus of NRCS Plant Materials work. Range and distribution data are unaffected.
§4Counties, by state
Recorded in 109 counties across 22 states/territories.
Alabama view state ↗ 3 I ▾
Arizona view state ↗ 2 I ▾
California view state ↗ 25 I ▾
- Butte 06007
- Colusa 06011
- Contra Costa 06013
- Fresno 06019
- Glenn 06021
- Kern 06029
- Madera 06039
- Marin 06041
- Merced 06047
- Napa 06055
- Nevada 06057
- Plumas 06063
- Riverside 06065
- Sacramento 06067
- San Diego 06073
- San Francisco 06075
- San Joaquin 06077
- Santa Barbara 06083
- Santa Cruz 06087
- Sonoma 06097
- Stanislaus 06099
- Sutter 06101
- Tehama 06103
- Yolo 06113
- Yuba 06115
Delaware view state ↗ 3 I ▾
District of Columbia view state ↗ 1 I ▾
Florida view state ↗ 6 I ▾
Georgia view state ↗ 3 I ▾
Hawaii view state ↗ 2 I ▾
Kentucky view state ↗ 6 I ▾
Louisiana view state ↗ 11 I ▾
Maryland view state ↗ 2 I ▾
Mississippi view state ↗ 2 I ▾
New Jersey view state ↗ 7 I ▾
New York view state ↗ 3 I ▾
Ohio view state ↗ 1 I ▾
Oregon view state ↗ 1 I ▾
Pennsylvania view state ↗ 1 I ▾
Puerto Rico view state ↗ 16 I ▾
Tennessee view state ↗ 3 I ▾
Texas view state ↗ 4 I ▾
Virginia view state ↗ 6 I ▾
Washington view state ↗ 1 I ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/CYDI4 ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/2714796 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T20:46:58Z