Index / Search / Triadenum walteri
§1 Plant
Triadenum walteri (J.G. Gmel.) Gleason
vernacular greater marsh St. Johnswort — species · Clusiaceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Perennial
- Group
- Dicot
- Family
- Clusiaceae Lindl.
- Genus
- Triadenum
§2a
Native status, by region
- L48 Lower 48 States Native
§2b
County-level range
· 309 counties across 18 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 309 counties across 18 states/territories.
Alabama view state ↗ 21 N ▾
Arkansas view state ↗ 15 N ▾
Delaware view state ↗ 3 N ▾
Florida view state ↗ 12 N ▾
Georgia view state ↗ 16 N ▾
Illinois view state ↗ 9 N ▾
Indiana view state ↗ 9 N ▾
Kentucky view state ↗ 20 N ▾
Louisiana view state ↗ 35 N ▾
- Allen 22003
- Avoyelles 22009
- Bienville 22013
- Bossier 22015
- Caddo 22017
- Calcasieu 22019
- Caldwell 22021
- Catahoula 22025
- Claiborne 22027
- De Soto 22031
- East Feliciana 22037
- Evangeline 22039
- Franklin 22041
- Grant 22043
- Jackson 22049
- Jefferson 22051
- Lafourche 22057
- LaSalle 22059
- Lincoln 22061
- Livingston 22063
- Madison 22065
- Morehouse 22067
- Natchitoches 22069
- Orleans 22071
- Ouachita 22073
- Plaquemines 22075
- St. Tammany 22103
- Tensas 22107
- Union 22111
- Vermilion 22113
- Vernon 22115
- Webster 22119
- West Baton Rouge 22121
- West Carroll 22123
- Winn 22127
Maryland view state ↗ 1 N ▾
Mississippi view state ↗ 22 N ▾
Missouri view state ↗ 14 N ▾
New Jersey view state ↗ 1 N ▾
North Carolina view state ↗ 32 N ▾
- Alamance 37001
- Beaufort 37013
- Bertie 37015
- Cherokee 37039
- Chowan 37041
- Cleveland 37045
- Columbus 37047
- Craven 37049
- Edgecombe 37065
- Gaston 37071
- Gates 37073
- Harnett 37085
- Hertford 37091
- Jones 37103
- Lenoir 37107
- Martin 37117
- Nash 37127
- New Hanover 37129
- Northampton 37131
- Pasquotank 37139
- Pender 37141
- Pitt 37147
- Polk 37149
- Robeson 37155
- Rowan 37159
- Sampson 37163
- Tyrrell 37177
- Vance 37181
- Warren 37185
- Washington 37187
- Wayne 37191
- Wilson 37195
Ohio view state ↗ 3 N ▾
South Carolina view state ↗ 26 N ▾
- Abbeville 45001
- Aiken 45003
- Allendale 45005
- Bamberg 45009
- Barnwell 45011
- Berkeley 45015
- Calhoun 45017
- Charleston 45019
- Chesterfield 45025
- Clarendon 45027
- Colleton 45029
- Darlington 45031
- Edgefield 45037
- Florence 45041
- Georgetown 45043
- Greenville 45045
- Kershaw 45055
- Lancaster 45057
- Marion 45067
- Marlboro 45069
- Oconee 45073
- Orangeburg 45075
- Pickens 45077
- Sumter 45085
- Union 45087
- Williamsburg 45089
Tennessee view state ↗ 30 N ▾
- Cannon 47015
- Carroll 47017
- Chester 47023
- Coffee 47031
- Cumberland 47035
- Dyer 47045
- Fayette 47047
- Fentress 47049
- Franklin 47051
- Gibson 47053
- Grundy 47061
- Hardeman 47069
- Hardin 47071
- Henry 47079
- Lake 47095
- Marion 47115
- Marshall 47117
- McNairy 47109
- Montgomery 47125
- Obion 47131
- Overton 47133
- Polk 47139
- Putnam 47141
- Roane 47145
- Robertson 47147
- Shelby 47157
- Stewart 47161
- Warren 47177
- Weakley 47183
- White 47185
Virginia view state ↗ 40 N ▾
- Accomack 51001
- Amelia 51007
- Augusta 51015
- Botetourt 51023
- Caroline 51033
- Charles City 51036
- Charlotte 51037
- Chesapeake (city) 51550
- Chesterfield 51041
- Cumberland 51049
- Dickenson 51051
- Dinwiddie 51053
- Essex 51057
- Fairfax 51059
- Giles 51071
- Gloucester 51073
- Greensville 51081
- Halifax 51083
- Henrico 51087
- Isle of Wight 51093
- King and Queen 51097
- King George 51099
- King William 51101
- Louisa 51109
- Mecklenburg 51117
- Middlesex 51119
- New Kent 51127
- Newport News (city) 51700
- Northampton 51131
- Northumberland 51133
- Nottoway 51135
- Powhatan 51145
- Prince George 51149
- Richmond 51159
- Southampton 51175
- Spotsylvania 51177
- Stafford 51179
- Surry 51181
- Virginia Beach (city) 51810
- Warren 51187
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/TRWA ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/3189582 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T09:28:40Z