Index / Search / Podostemum ceratophyllum
§1 Plant
Podostemum ceratophyllum Michx.
vernacular hornleaf riverweed — species · Podostemaceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Perennial
- Group
- Dicot
- Family
- Podostemaceae Rich. ex Kunth
- Genus
- Podostemum
§2a
Native status, by region
- CAN Canada Native
- L48 Lower 48 States Native
§2b
County-level range
· 246 counties across 24 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 246 counties across 24 states/territories.
Alabama view state ↗ 12 N ▾
Arkansas view state ↗ 8 N ▾
Delaware view state ↗ 1 N ▾
District of Columbia view state ↗ 1 N ▾
Georgia view state ↗ 24 N ▾
- Cherokee 13057
- Clarke 13059
- Dawson 13085
- DeKalb 13089
- Elbert 13105
- Fulton 13121
- Gwinnett 13135
- Harris 13145
- Hart 13147
- Lee 13177
- Madison 13195
- Meriwether 13199
- Morgan 13211
- Newton 13217
- Oglethorpe 13221
- Rabun 13241
- Randolph 13243
- Rockdale 13247
- Stephens 13257
- Talbot 13263
- Towns 13281
- Upson 13293
- Walton 13297
- White 13311
Indiana view state ↗ 1 N ▾
Kentucky view state ↗ 22 N ▾
Louisiana view state ↗ 3 N ▾
Maine view state ↗ 2 N ▾
Maryland view state ↗ 2 N ▾
Massachusetts view state ↗ 4 N ▾
Mississippi view state ↗ 3 N ▾
New Hampshire view state ↗ 5 N ▾
New Jersey view state ↗ 6 N ▾
New York view state ↗ 13 N ▾
North Carolina view state ↗ 32 N ▾
- Alleghany 37005
- Ashe 37009
- Avery 37011
- Buncombe 37021
- Burke 37023
- Caldwell 37027
- Chatham 37037
- Cherokee 37039
- Durham 37063
- Edgecombe 37065
- Graham 37075
- Granville 37077
- Harnett 37085
- Haywood 37087
- Johnston 37101
- Lee 37105
- Macon 37113
- Madison 37115
- Mitchell 37121
- Nash 37127
- Orange 37135
- Polk 37149
- Richmond 37153
- Rockingham 37157
- Rutherford 37161
- Swain 37173
- Transylvania 37175
- Wake 37183
- Watauga 37189
- Wilkes 37193
- Yadkin 37197
- Yancey 37199
Ohio view state ↗ 2 N ▾
Pennsylvania view state ↗ 30 N ▾
- Bedford 42009
- Berks 42011
- Bucks 42017
- Carbon 42025
- Chester 42029
- Columbia 42037
- Cumberland 42041
- Delaware 42045
- Fulton 42057
- Huntingdon 42061
- Juniata 42067
- Lancaster 42071
- Luzerne 42079
- Mercer 42085
- Monroe 42089
- Montour 42093
- Northampton 42095
- Northumberland 42097
- Perry 42099
- Philadelphia 42101
- Pike 42103
- Snyder 42109
- Somerset 42111
- Tioga 42117
- Union 42119
- Venango 42121
- Warren 42123
- Wayne 42127
- Westmoreland 42129
- York 42133
Rhode Island view state ↗ 1 N ▾
South Carolina view state ↗ 6 N ▾
Tennessee view state ↗ 25 N ▾
- Blount 47009
- Bradley 47011
- Carter 47019
- Cocke 47029
- Coffee 47031
- Davidson 47037
- Grundy 47061
- Haywood 47075
- Johnson 47091
- Knox 47093
- Lauderdale 47097
- Lewis 47101
- Lincoln 47103
- Loudon 47105
- Madison 47113
- Marion 47115
- Maury 47119
- McMinn 47107
- Monroe 47123
- Morgan 47129
- Perry 47135
- Polk 47139
- Scott 47151
- Van Buren 47175
- Wayne 47181
Vermont view state ↗ 3 N ▾
Virginia view state ↗ 30 N ▾
- Albemarle 51003
- Alleghany 51005
- Bedford 51019
- Buckingham 51029
- Carroll 51035
- Dinwiddie 51053
- Fairfax 51059
- Fauquier 51061
- Fluvanna 51065
- Giles 51071
- Grayson 51077
- Greensville 51081
- Hanover 51085
- Henrico 51087
- Loudoun 51107
- Lunenburg 51111
- Mecklenburg 51117
- Montgomery 51121
- Nelson 51125
- Nottoway 51135
- Pittsylvania 51143
- Powhatan 51145
- Prince Edward 51147
- Prince William 51153
- Roanoke 51161
- Rockingham 51165
- Spotsylvania 51177
- Stafford 51179
- Sussex 51183
- Wythe 51197
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/POCE3 ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/2932949 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T09:28:40Z