Index / Search / Spirodela polyrrhiza
§1 Plant
Spirodela polyrrhiza (L.) Schleid.
vernacular common duckmeat — species · Lemnaceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Perennial
- Group
- Monocot
- Family
- Lemnaceae Martinov
- Genus
- Spirodela
§2a
Native status, by region
- CAN Canada Native
- HI Hawaii Native
- L48 Lower 48 States Native
- PR Puerto Rico Native
- VI U.S. Virgin Islands Native
§2b
County-level range
· 934 counties across 40 states/territories§3Cultivation specs · USDA
Recorded by the USDA Plant Materials Program.
§3a
Tolerances
- Drought
- None
- Shade
- Medium
- Moisture use
- High
- Salinity
- None
- Anaerobic
- High
- CaCO₃
- Medium
- Hedging
- None
§3b
Climate & soil
- Cold tolerance
- -38 °F minimum
- Frost-free days
- 120 min.
- Precipitation
- 12–55 in/yr
- pH range
- 5–8.6
- Root depth
- 0 in min.
- Fertility need
- Medium
- Soil texture
- medium, fine
§3c
Form & growth
- Growth form
- Single Crown
- Growth rate
- Moderate
- Lifespan
- Short
- Foliage texture
- Fine
- Foliage colour
- Green
- Porosity (summer)
- Porous
- Porosity (winter)
- Porous
- Flower colour
- Green
- Fruit colour
- Brown
- Fire resistant
- Yes
- N fixation
- None
- Toxicity
- None
§3d
Reproduction
- Bloom period
- Late Summer
- Seed abundance
- Low
- Seed begins
- Summer
- Seed ends
- Fall
- Spread rate
- Slow
- Stratify
- No
- Propagation
- seed, sprigs
§3e
Use & availability
- Commercial availability
- Routinely Available
- Nursery stock
- No
- Palatable, human
- No
- Lumber
- No
- Christmas tree
- No
§4Counties, by state
Recorded in 934 counties across 40 states/territories.
Alabama view state ↗ 23 N ▾
- Autauga 01001
- Cherokee 01019
- Choctaw 01023
- Clarke 01025
- Conecuh 01035
- Dallas 01047
- Elmore 01051
- Greene 01063
- Houston 01069
- Jackson 01071
- Lauderdale 01077
- Lee 01081
- Limestone 01083
- Lowndes 01085
- Madison 01089
- Marengo 01091
- Marshall 01095
- Monroe 01099
- Montgomery 01101
- Shelby 01117
- Tuscaloosa 01125
- Washington 01129
- Wilcox 01131
Arizona view state ↗ 4 N ▾
Arkansas view state ↗ 15 N ▾
Colorado view state ↗ 3 N ▾
Delaware view state ↗ 1 N ▾
District of Columbia view state ↗ 1 N ▾
Florida view state ↗ 20 N ▾
Georgia view state ↗ 16 N ▾
Idaho view state ↗ 8 N ▾
Illinois view state ↗ 81 N ▾
- Adams 17001
- Alexander 17003
- Boone 17007
- Brown 17009
- Calhoun 17013
- Cass 17017
- Champaign 17019
- Clay 17025
- Coles 17029
- Cook 17031
- Crawford 17033
- Cumberland 17035
- DeKalb 17037
- Douglas 17041
- DuPage 17043
- Edgar 17045
- Effingham 17049
- Fayette 17051
- Franklin 17055
- Fulton 17057
- Grundy 17063
- Hancock 17067
- Henderson 17071
- Henry 17073
- Iroquois 17075
- Jackson 17077
- Jasper 17079
- Jefferson 17081
- Jersey 17083
- Jo Daviess 17085
- Johnson 17087
- Kane 17089
- Kankakee 17091
- Kendall 17093
- Knox 17095
- Lake 17097
- LaSalle 17099
- Lawrence 17101
- Lee 17103
- Livingston 17105
- Macon 17115
- Macoupin 17117
- Madison 17119
- Marion 17121
- Marshall 17123
- Mason 17125
- Massac 17127
- McDonough 17109
- McHenry 17111
- McLean 17113
- Menard 17129
- Mercer 17131
- Monroe 17133
- Montgomery 17135
- Morgan 17137
- Ogle 17141
- Peoria 17143
- Perry 17145
- Piatt 17147
- Pike 17149
- Pope 17151
- Pulaski 17153
- Putnam 17155
- Randolph 17157
- Richland 17159
- Rock Island 17161
- Sangamon 17167
- Schuyler 17169
- Scott 17171
- St. Clair 17163
- Tazewell 17179
- Union 17181
- Vermilion 17183
- Wabash 17185
- Warren 17187
- Washington 17189
- Whiteside 17195
- Will 17197
- Williamson 17199
- Winnebago 17201
- Woodford 17203
Indiana view state ↗ 48 N ▾
- Allen 18003
- Boone 18011
- Carroll 18015
- Cass 18017
- Clay 18021
- Clinton 18023
- Crawford 18025
- Daviess 18027
- DeKalb 18033
- Elkhart 18039
- Fountain 18045
- Franklin 18047
- Fulton 18049
- Gibson 18051
- Grant 18053
- Greene 18055
- Hancock 18059
- Howard 18067
- Huntington 18069
- Jackson 18071
- Jasper 18073
- Jefferson 18077
- Knox 18083
- Kosciusko 18085
- Lagrange 18087
- Lake 18089
- Lawrence 18093
- Madison 18095
- Marshall 18099
- Montgomery 18107
- Morgan 18109
- Newton 18111
- Noble 18113
- Porter 18127
- Posey 18129
- Putnam 18133
- St. Joseph 18141
- Steuben 18151
- Sullivan 18153
- Tippecanoe 18157
- Vermillion 18165
- Vigo 18167
- Wabash 18169
- Warren 18171
- Wayne 18177
- Wells 18179
- White 18181
- Whitley 18183
Iowa view state ↗ 12 N ▾
Kansas view state ↗ 45 N ▾
- Atchison 20005
- Barber 20007
- Brown 20013
- Cherokee 20021
- Clark 20025
- Cloud 20029
- Coffey 20031
- Comanche 20033
- Decatur 20039
- Dickinson 20041
- Doniphan 20043
- Douglas 20045
- Edwards 20047
- Ellis 20051
- Ford 20057
- Franklin 20059
- Harvey 20079
- Jackson 20085
- Jewell 20089
- Kingman 20095
- Labette 20099
- Linn 20107
- Lyon 20111
- Meade 20119
- Miami 20121
- Neosho 20133
- Osage 20139
- Ottawa 20143
- Pottawatomie 20149
- Pratt 20151
- Reno 20155
- Republic 20157
- Rice 20159
- Riley 20161
- Rooks 20163
- Saline 20169
- Sedgwick 20173
- Seward 20175
- Sheridan 20179
- Sherman 20181
- Smith 20183
- Stafford 20185
- Sumner 20191
- Woodson 20207
- Wyandotte 20209
Kentucky view state ↗ 36 N ▾
- Adair 21001
- Ballard 21007
- Bath 21011
- Boone 21015
- Bourbon 21017
- Bracken 21023
- Breckinridge 21027
- Campbell 21037
- Carlisle 21039
- Carroll 21041
- Casey 21045
- Clark 21049
- Clinton 21053
- Crittenden 21055
- Fayette 21067
- Franklin 21073
- Fulton 21075
- Gallatin 21077
- Grant 21081
- Henderson 21101
- Henry 21103
- Hickman 21105
- Jefferson 21111
- Jessamine 21113
- Lewis 21135
- Lincoln 21137
- Livingston 21139
- Logan 21141
- Lyon 21143
- McLean 21149
- Mercer 21167
- Montgomery 21173
- Robertson 21201
- Rowan 21205
- Trigg 21221
- Woodford 21239
Louisiana view state ↗ 31 N ▾
- Assumption 22007
- Avoyelles 22009
- Bienville 22013
- Caddo 22017
- Calcasieu 22019
- Caldwell 22021
- Claiborne 22027
- Concordia 22029
- De Soto 22031
- East Baton Rouge 22033
- Franklin 22041
- Grant 22043
- Iberville 22047
- Jackson 22049
- Jefferson 22051
- Lafayette 22055
- Lafourche 22057
- LaSalle 22059
- Lincoln 22061
- Madison 22065
- Morehouse 22067
- Natchitoches 22069
- Orleans 22071
- Ouachita 22073
- Rapides 22079
- Richland 22083
- Sabine 22085
- St. Charles 22089
- Tensas 22107
- Union 22111
- Webster 22119
Maine view state ↗ 10 N ▾
Massachusetts view state ↗ 12 N ▾
Michigan view state ↗ 46 N ▾
- Allegan 26005
- Baraga 26013
- Barry 26015
- Bay 26017
- Benzie 26019
- Branch 26023
- Calhoun 26025
- Cass 26027
- Charlevoix 26029
- Cheboygan 26031
- Chippewa 26033
- Clare 26035
- Clinton 26037
- Emmet 26047
- Gogebic 26053
- Hillsdale 26059
- Houghton 26061
- Ingham 26065
- Iosco 26069
- Iron 26071
- Isabella 26073
- Jackson 26075
- Kalamazoo 26077
- Kent 26081
- Leelanau 26089
- Lenawee 26091
- Livingston 26093
- Luce 26095
- Marquette 26103
- Mason 26105
- Mecosta 26107
- Midland 26111
- Monroe 26115
- Muskegon 26121
- Oakland 26125
- Ogemaw 26129
- Oscoda 26135
- Presque Isle 26141
- Roscommon 26143
- Shiawassee 26155
- St. Clair 26147
- St. Joseph 26149
- Van Buren 26159
- Washtenaw 26161
- Wayne 26163
- Wexford 26165
Minnesota view state ↗ 57 N ▾
- Aitkin 27001
- Anoka 27003
- Becker 27005
- Beltrami 27007
- Benton 27009
- Big Stone 27011
- Blue Earth 27013
- Brown 27015
- Carver 27019
- Cass 27021
- Chippewa 27023
- Chisago 27025
- Clay 27027
- Clearwater 27029
- Crow Wing 27035
- Dakota 27037
- Douglas 27041
- Faribault 27043
- Freeborn 27047
- Goodhue 27049
- Hennepin 27053
- Houston 27055
- Isanti 27059
- Itasca 27061
- Kanabec 27065
- Koochiching 27071
- Lake 27075
- Lake of the Woods 27077
- Le Sueur 27079
- Lincoln 27081
- Lyon 27083
- Marshall 27089
- Martin 27091
- McLeod 27085
- Mille Lacs 27095
- Morrison 27097
- Mower 27099
- Murray 27101
- Nicollet 27103
- Otter Tail 27111
- Pine 27115
- Pipestone 27117
- Polk 27119
- Ramsey 27123
- Rice 27131
- Roseau 27135
- Scott 27139
- Sibley 27143
- St. Louis 27137
- Stearns 27145
- Stevens 27149
- Todd 27153
- Wabasha 27157
- Waseca 27161
- Washington 27163
- Winona 27169
- Wright 27171
Mississippi view state ↗ 9 N ▾
Missouri view state ↗ 48 N ▾
- Adair 29001
- Audrain 29007
- Barry 29009
- Boone 29019
- Butler 29023
- Camden 29029
- Cape Girardeau 29031
- Carroll 29033
- Carter 29035
- Cass 29037
- Christian 29043
- DeKalb 29063
- Dent 29065
- Dunklin 29069
- Jackson 29095
- Jasper 29097
- Jefferson 29099
- Johnson 29101
- Laclede 29105
- Lewis 29111
- Lincoln 29113
- Madison 29123
- Mercer 29129
- Mississippi 29133
- Monroe 29137
- New Madrid 29143
- Newton 29145
- Oregon 29149
- Ozark 29153
- Pemiscot 29155
- Pettis 29159
- Phelps 29161
- Pike 29163
- Pulaski 29169
- Randolph 29175
- Ray 29177
- Reynolds 29179
- Ripley 29181
- Scott 29201
- Shannon 29203
- St. Charles 29183
- St. Clair 29185
- St. Francois 29187
- St. Louis 29189
- Stoddard 29207
- Texas 29215
- Vernon 29217
- Warren 29219
Montana view state ↗ 1 N ▾
Nebraska view state ↗ 27 N ▾
- Antelope 31003
- Arthur 31005
- Brown 31017
- Cherry 31031
- Clay 31035
- Colfax 31037
- Cuming 31039
- Custer 31041
- Dodge 31053
- Douglas 31055
- Dundy 31057
- Garden 31069
- Hall 31079
- Hamilton 31081
- Hitchcock 31087
- Holt 31089
- Howard 31093
- Lincoln 31111
- Pawnee 31133
- Richardson 31147
- Rock 31149
- Saline 31151
- Sarpy 31153
- Sheridan 31161
- Sherman 31163
- Stanton 31167
- Thomas 31171
New Hampshire view state ↗ 7 N ▾
New Jersey view state ↗ 20 N ▾
New York view state ↗ 43 N ▾
- Albany 36001
- Bronx 36005
- Cattaraugus 36009
- Cayuga 36011
- Chemung 36015
- Chenango 36017
- Columbia 36021
- Cortland 36023
- Delaware 36025
- Dutchess 36027
- Erie 36029
- Essex 36031
- Herkimer 36043
- Kings 36047
- Lewis 36049
- Madison 36053
- Monroe 36055
- Nassau 36059
- Niagara 36063
- Oneida 36065
- Onondaga 36067
- Orange 36071
- Oswego 36075
- Putnam 36079
- Queens 36081
- Rensselaer 36083
- Richmond 36085
- Rockland 36087
- Saratoga 36091
- Schenectady 36093
- Schoharie 36095
- Schuyler 36097
- St. Lawrence 36089
- Steuben 36101
- Suffolk 36103
- Sullivan 36105
- Tioga 36107
- Ulster 36111
- Warren 36113
- Washington 36115
- Wayne 36117
- Westchester 36119
- Yates 36123
North Carolina view state ↗ 23 N ▾
- Beaufort 37013
- Brunswick 37019
- Camden 37029
- Chowan 37041
- Craven 37049
- Currituck 37053
- Dare 37055
- Franklin 37069
- Gates 37073
- Hyde 37095
- Johnston 37101
- Lenoir 37107
- Martin 37117
- Nash 37127
- New Hanover 37129
- Northampton 37131
- Pasquotank 37139
- Pender 37141
- Perquimans 37143
- Tyrrell 37177
- Wake 37183
- Washington 37187
- Wayne 37191
North Dakota view state ↗ 9 N ▾
Ohio view state ↗ 31 N ▾
- Allen 39003
- Ashland 39005
- Auglaize 39011
- Brown 39015
- Clermont 39025
- Columbiana 39029
- Coshocton 39031
- Cuyahoga 39035
- Defiance 39039
- Erie 39043
- Fairfield 39045
- Franklin 39049
- Geauga 39055
- Hamilton 39061
- Highland 39071
- Huron 39077
- Licking 39089
- Logan 39091
- Lorain 39093
- Lucas 39095
- Madison 39097
- Medina 39103
- Portage 39133
- Richland 39139
- Sandusky 39143
- Shelby 39149
- Stark 39151
- Summit 39153
- Trumbull 39155
- Wayne 39169
- Wood 39173
Oklahoma view state ↗ 8 N ▾
Pennsylvania view state ↗ 39 N ▾
- Allegheny 42003
- Beaver 42007
- Bedford 42009
- Berks 42011
- Blair 42013
- Bradford 42015
- Bucks 42017
- Butler 42019
- Centre 42027
- Chester 42029
- Clinton 42035
- Crawford 42039
- Dauphin 42043
- Delaware 42045
- Erie 42049
- Fayette 42051
- Franklin 42055
- Huntingdon 42061
- Lackawanna 42069
- Lancaster 42071
- Lawrence 42073
- Lebanon 42075
- Lehigh 42077
- Luzerne 42079
- Mercer 42085
- Monroe 42089
- Montgomery 42091
- Northampton 42095
- Perry 42099
- Philadelphia 42101
- Pike 42103
- Somerset 42111
- Tioga 42117
- Union 42119
- Venango 42121
- Warren 42123
- Wayne 42127
- Westmoreland 42129
- Wyoming 42131
Rhode Island view state ↗ 3 N ▾
South Carolina view state ↗ 6 N ▾
South Dakota view state ↗ 8 N ▾
Tennessee view state ↗ 23 N ▾
- Carroll 47017
- Dickson 47043
- Dyer 47045
- Haywood 47075
- Henry 47079
- Hickman 47081
- Humphreys 47085
- Jackson 47087
- Knox 47093
- Lake 47095
- Lauderdale 47097
- Madison 47113
- Maury 47119
- Montgomery 47125
- Obion 47131
- Robertson 47147
- Shelby 47157
- Stewart 47161
- Sumner 47165
- Tipton 47167
- Washington 47179
- White 47185
- Williamson 47187
Texas view state ↗ 39 N ▾
- Angelina 48005
- Bowie 48037
- Brazos 48041
- Calhoun 48057
- Cass 48067
- Colorado 48089
- Dallas 48113
- Denton 48121
- Donley 48129
- Grayson 48181
- Hardin 48199
- Harrison 48203
- Hays 48209
- Hemphill 48211
- Henderson 48213
- Houston 48225
- Jeff Davis 48243
- Kerr 48265
- Liberty 48291
- Lipscomb 48295
- Madison 48313
- Marion 48315
- McLennan 48309
- Menard 48327
- Montgomery 48339
- Morris 48343
- Panola 48365
- Polk 48373
- Red River 48387
- Robertson 48395
- Rusk 48401
- Sabine 48403
- San Saba 48411
- Shelby 48419
- Smith 48423
- Tarrant 48439
- Tom Green 48451
- Tyler 48457
- Williamson 48491
Vermont view state ↗ 9 N ▾
Virginia view state ↗ 49 N ▾
- Accomack 51001
- Albemarle 51003
- Bath 51017
- Bedford 51019
- Bland 51021
- Campbell 51031
- Caroline 51033
- Charles City 51036
- Chesapeake (city) 51550
- Clarke 51043
- Cumberland 51049
- Essex 51057
- Fairfax 51059
- Frederick 51069
- Giles 51071
- Gloucester 51073
- Goochland 51075
- Hanover 51085
- Isle of Wight 51093
- James City 51095
- King and Queen 51097
- King George 51099
- King William 51101
- Lancaster 51103
- Loudoun 51107
- Mathews 51115
- Mecklenburg 51117
- Middlesex 51119
- Montgomery 51121
- Nelson 51125
- New Kent 51127
- Newport News (city) 51700
- Northampton 51131
- Page 51139
- Powhatan 51145
- Prince George 51149
- Shenandoah 51171
- Smyth 51173
- Southampton 51175
- Spotsylvania 51177
- Stafford 51179
- Surry 51181
- Sussex 51183
- Tazewell 51185
- Virginia Beach (city) 51810
- Warren 51187
- Washington 51191
- Westmoreland 51193
- York 51199
West Virginia view state ↗ 5 N ▾
Wisconsin view state ↗ 58 N ▾
- Adams 55001
- Ashland 55003
- Barron 55005
- Bayfield 55007
- Brown 55009
- Buffalo 55011
- Burnett 55013
- Calumet 55015
- Chippewa 55017
- Clark 55019
- Columbia 55021
- Crawford 55023
- Dane 55025
- Douglas 55031
- Dunn 55033
- Eau Claire 55035
- Fond du Lac 55039
- Grant 55043
- Green 55045
- Green Lake 55047
- Iron 55051
- Jefferson 55055
- Kenosha 55059
- La Crosse 55063
- Lafayette 55065
- Lincoln 55069
- Marinette 55075
- Marquette 55077
- Milwaukee 55079
- Monroe 55081
- Oconto 55083
- Oneida 55085
- Outagamie 55087
- Ozaukee 55089
- Pepin 55091
- Pierce 55093
- Polk 55095
- Portage 55097
- Price 55099
- Racine 55101
- Richland 55103
- Rock 55105
- Rusk 55107
- Sauk 55111
- Sawyer 55113
- Shawano 55115
- Sheboygan 55117
- St. Croix 55109
- Taylor 55119
- Trempealeau 55121
- Vernon 55123
- Vilas 55125
- Walworth 55127
- Washburn 55129
- Waukesha 55133
- Waushara 55137
- Winnebago 55139
- Wood 55141
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/SPPO ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/4097481 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T11:35:19Z