Index / Search / Najas guadalupensis
§1 Plant
Najas guadalupensis (Spreng.) Magnus
vernacular southern waternymph — species · Najadaceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Annual
- Group
- Monocot
- Family
- Najadaceae Juss.
- Genus
- Najas
§2a
Native status, by region
- CAN Canada Native
- HI Hawaii Introduced
- L48 Lower 48 States Native
- PR Puerto Rico Native
§2b
County-level range
· 514 counties across 34 states/territories§3Cultivation specs · USDA
Recorded by the USDA Plant Materials Program.
§3a
Tolerances
- Drought
- None
- Shade
- High
- Moisture use
- High
- Fire
- None
- Salinity
- Medium
- Anaerobic
- High
- CaCO₃
- High
- Hedging
- None
§3b
Climate & soil
- Cold tolerance
- -36 °F minimum
- Frost-free days
- 130 min.
- pH range
- 5.2–9.6
- Root depth
- 2 in min.
- Fertility need
- Medium
- Soil texture
- coarse, medium, fine
§3c
Form & growth
- Growth form
- Single Crown
- Growth rate
- Moderate
- Mature height
- 1 ft
- Foliage texture
- Fine
- Foliage colour
- Gray-Green
- Flower colour
- Green
- Fruit colour
- Brown
- Fire resistant
- No
- N fixation
- None
- Toxicity
- None
§3d
Reproduction
- Bloom period
- Summer
- Seed abundance
- Medium
- Seed begins
- Summer
- Seed ends
- Fall
- 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 514 counties across 34 states/territories.
Alabama view state ↗ 21 N ▾
Arizona view state ↗ 2 N ▾
Arkansas view state ↗ 6 N ▾
Delaware view state ↗ 1 N ▾
District of Columbia view state ↗ 1 N ▾
Florida view state ↗ 39 N ▾
- Alachua 12001
- Brevard 12009
- Broward 12011
- Calhoun 12013
- Charlotte 12015
- Citrus 12017
- Clay 12019
- Collier 12021
- Columbia 12023
- DeSoto 12027
- Dixie 12029
- Duval 12031
- Franklin 12037
- Gilchrist 12041
- Glades 12043
- Hendry 12051
- Hernando 12053
- Jackson 12063
- Jefferson 12065
- Lafayette 12067
- Lake 12069
- Lee 12071
- Leon 12073
- Levy 12075
- Marion 12083
- Martin 12085
- Miami-Dade 12086
- Monroe 12087
- Okeechobee 12093
- Orange 12095
- Palm Beach 12099
- Pasco 12101
- Pinellas 12103
- Putnam 12107
- Santa Rosa 12113
- Seminole 12117
- Sumter 12119
- Suwannee 12121
- Wakulla 12129
Georgia view state ↗ 16 N ▾
Illinois view state ↗ 64 N ▾
- Adams 17001
- Alexander 17003
- Bond 17005
- Bureau 17011
- Cass 17017
- Champaign 17019
- Clark 17023
- Clay 17025
- Coles 17029
- Crawford 17033
- Cumberland 17035
- De Witt 17039
- Douglas 17041
- Edgar 17045
- Edwards 17047
- Effingham 17049
- Fayette 17051
- Ford 17053
- Franklin 17055
- Fulton 17057
- Gallatin 17059
- Greene 17061
- Grundy 17063
- Hamilton 17065
- Hancock 17067
- Hardin 17069
- Henderson 17071
- Henry 17073
- Iroquois 17075
- Jackson 17077
- Jasper 17079
- Jefferson 17081
- Johnson 17087
- Knox 17095
- Lake 17097
- Lawrence 17101
- Macoupin 17117
- Madison 17119
- Marion 17121
- Mason 17125
- Menard 17129
- Monroe 17133
- Montgomery 17135
- Morgan 17137
- Moultrie 17139
- Peoria 17143
- Perry 17145
- Piatt 17147
- Pope 17151
- Pulaski 17153
- Randolph 17157
- Richland 17159
- Saline 17165
- Sangamon 17167
- Shelby 17173
- St. Clair 17163
- Tazewell 17179
- Union 17181
- Vermilion 17183
- Warren 17187
- Washington 17189
- Wayne 17191
- White 17193
- Williamson 17199
Indiana view state ↗ 16 N ▾
Kansas view state ↗ 44 N ▾
- Anderson 20003
- Barber 20007
- Barton 20009
- Bourbon 20011
- Brown 20013
- Clark 20025
- Clay 20027
- Coffey 20031
- Comanche 20033
- Doniphan 20043
- Douglas 20045
- Ellis 20051
- Ellsworth 20053
- Ford 20057
- Gove 20063
- Hamilton 20075
- Harper 20077
- Harvey 20079
- Hodgeman 20083
- Jackson 20085
- Jefferson 20087
- Jewell 20089
- Johnson 20091
- Kingman 20095
- Kiowa 20097
- Leavenworth 20103
- Lincoln 20105
- Linn 20107
- Logan 20109
- Meade 20119
- Miami 20121
- Ness 20135
- Ottawa 20143
- Pottawatomie 20149
- Reno 20155
- Rice 20159
- Russell 20167
- Saline 20169
- Sedgwick 20173
- Shawnee 20177
- Trego 20195
- Wabaunsee 20197
- Woodson 20207
- Wyandotte 20209
Kentucky view state ↗ 28 N ▾
- Boone 21015
- Bracken 21023
- Bullitt 21029
- Carroll 21041
- Clark 21049
- Estill 21065
- Fayette 21067
- Grant 21081
- Hardin 21093
- Harlan 21095
- Harrison 21097
- Hopkins 21107
- Jackson 21109
- Jefferson 21111
- Kenton 21117
- Lincoln 21137
- Lyon 21143
- Madison 21151
- Mason 21161
- Meade 21163
- Montgomery 21173
- Morgan 21175
- Muhlenberg 21177
- Ohio 21183
- Owen 21187
- Rockcastle 21203
- Scott 21209
- Trigg 21221
Louisiana view state ↗ 40 N ▾
- Assumption 22007
- Avoyelles 22009
- Bienville 22013
- Bossier 22015
- Caddo 22017
- Calcasieu 22019
- Cameron 22023
- Claiborne 22027
- Concordia 22029
- De Soto 22031
- East Carroll 22035
- Evangeline 22039
- Grant 22043
- Iberia 22045
- Iberville 22047
- Jackson 22049
- Jefferson 22051
- Lafourche 22057
- LaSalle 22059
- Lincoln 22061
- Morehouse 22067
- Natchitoches 22069
- Orleans 22071
- Ouachita 22073
- Plaquemines 22075
- Pointe Coupee 22077
- Rapides 22079
- Red River 22081
- Richland 22083
- Sabine 22085
- St. Charles 22089
- St. John the Baptist 22095
- St. Martin 22099
- St. Mary 22101
- St. Tammany 22103
- Tangipahoa 22105
- Terrebonne 22109
- Union 22111
- Vermilion 22113
- Vernon 22115
Massachusetts view state ↗ 6 N ▾
Michigan view state ↗ 18 N ▾
Minnesota view state ↗ 15 N ▾
Mississippi view state ↗ 7 N ▾
Missouri view state ↗ 43 N ▾
- Adair 29001
- Barry 29009
- Barton 29011
- Benton 29015
- Boone 29019
- Butler 29023
- Cape Girardeau 29031
- Clinton 29049
- Cooper 29053
- Crawford 29055
- Douglas 29067
- Greene 29077
- Grundy 29079
- Howell 29091
- Iron 29093
- Jackson 29095
- Jasper 29097
- Johnson 29101
- Laclede 29105
- Lawrence 29109
- Macon 29121
- Madison 29123
- Maries 29125
- McDonald 29119
- Monroe 29137
- Newton 29145
- Osage 29151
- Pemiscot 29155
- Pettis 29159
- Phelps 29161
- Pulaski 29169
- Randolph 29175
- Reynolds 29179
- Ripley 29181
- Shannon 29203
- St. Charles 29183
- St. Clair 29185
- St. Francois 29187
- St. Louis 29189
- Vernon 29217
- Warren 29219
- Wayne 29223
- Webster 29225
Montana view state ↗ 1 N ▾
Nebraska view state ↗ 14 N ▾
New Jersey view state ↗ 7 N ▾
New York view state ↗ 20 N ▾
North Carolina view state ↗ 16 N ▾
North Dakota view state ↗ 1 N ▾
Pennsylvania view state ↗ 8 N ▾
Rhode Island view state ↗ 1 N ▾
South Carolina view state ↗ 2 N ▾
South Dakota view state ↗ 8 N ▾
Tennessee view state ↗ 14 N ▾
Vermont view state ↗ 2 N ▾
Virginia view state ↗ 21 N ▾
- Albemarle 51003
- Essex 51057
- Fairfax 51059
- Floyd 51063
- Frederick 51069
- Gloucester 51073
- James City 51095
- King and Queen 51097
- King George 51099
- King William 51101
- Loudoun 51107
- Middlesex 51119
- Montgomery 51121
- Northampton 51131
- Richmond 51159
- Rockingham 51165
- Shenandoah 51171
- Stafford 51179
- Virginia Beach (city) 51810
- Warren 51187
- York 51199
West Virginia view state ↗ 1 N ▾
Wisconsin view state ↗ 22 N ▾
- Burnett 55013
- Columbia 55021
- Crawford 55023
- Grant 55043
- Green Lake 55047
- Jefferson 55055
- Kenosha 55059
- La Crosse 55063
- Marquette 55077
- Oconto 55083
- Pepin 55091
- Pierce 55093
- Polk 55095
- Portage 55097
- Racine 55101
- Rock 55105
- Trempealeau 55121
- Vilas 55125
- Walworth 55127
- Waukesha 55133
- Waushara 55137
- Winnebago 55139
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/NAGU ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/5329293 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T08:39:52Z