§1 Plant
Egeria densa Planch.
vernacular Brazilian waterweed — species · Hydrocharitaceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Perennial
- Group
- Monocot
- Family
- Hydrocharitaceae Juss.
- Genus
- Egeria
§2a
Native status, by region
- CAN Canada Introduced
- HI Hawaii Introduced
- L48 Lower 48 States Introduced
- PR Puerto Rico Introduced
§2b
County-level range
· 139 counties across 20 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 139 counties across 20 states/territories.
Alabama view state ↗ 10 I ▾
Arizona view state ↗ 1 I ▾
Arkansas view state ↗ 4 I ▾
Florida view state ↗ 16 I ▾
Georgia view state ↗ 12 I ▾
Illinois view state ↗ 4 I ▾
Indiana view state ↗ 3 I ▾
Kansas view state ↗ 1 I ▾
Kentucky view state ↗ 5 I ▾
Louisiana view state ↗ 25 I ▾
- Assumption 22007
- Bienville 22013
- Caddo 22017
- Calcasieu 22019
- Cameron 22023
- Claiborne 22027
- De Soto 22031
- East Feliciana 22037
- Evangeline 22039
- Jackson 22049
- Lafayette 22055
- Lafourche 22057
- Lincoln 22061
- Natchitoches 22069
- Orleans 22071
- Ouachita 22073
- Rapides 22079
- Sabine 22085
- St. John the Baptist 22095
- St. Martin 22099
- St. Mary 22101
- St. Tammany 22103
- Union 22111
- Vernon 22115
- Winn 22127
Massachusetts view state ↗ 5 I ▾
Mississippi view state ↗ 1 I ▾
New Jersey view state ↗ 4 I ▾
New York view state ↗ 3 I ▾
North Carolina view state ↗ 15 I ▾
Pennsylvania view state ↗ 4 I ▾
South Carolina view state ↗ 2 I ▾
Tennessee view state ↗ 9 I ▾
Vermont view state ↗ 1 I ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/EGDE ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/5329263 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T07:25:30Z