Index / Search / Potamogeton zosteriformis
§1 Plant
Potamogeton zosteriformis Fernald
vernacular flatstem pondweed — species · Potamogetonaceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Perennial
- Group
- Monocot
- Family
- Potamogetonaceae Bercht. & J. Presl
- Genus
- Potamogeton
§2a
Native status, by region
- AK Alaska Native
- CAN Canada Native
- L48 Lower 48 States Native
§2b
County-level range
· 330 counties across 23 states/territories§3Cultivation specs · USDA
Recorded by the USDA Plant Materials Program.
§3a
Tolerances
- Drought
- None
- Shade
- High
- Moisture use
- High
- Fire
- High
- Salinity
- None
- Anaerobic
- High
- CaCO₃
- Low
- Hedging
- None
§3b
Climate & soil
- Cold tolerance
- -38 °F minimum
- Frost-free days
- 90 min.
- Precipitation
- 12–55 in/yr
- pH range
- 5.8–7
- Root depth
- 0 in min.
- Fertility need
- Medium
§3c
Form & growth
- Growth form
- Single Crown
- Growth rate
- Rapid
- Lifespan
- Short
- Foliage texture
- Medium
- Foliage colour
- Green
- Porosity (summer)
- Porous
- Porosity (winter)
- Porous
- Flower colour
- Green
- Fruit colour
- Green
- Fire resistant
- No
- N fixation
- None
- Toxicity
- None
§3d
Reproduction
- Bloom period
- Mid Summer
- Seed abundance
- Low
- Seed begins
- Summer
- Seed ends
- Fall
- Spread rate
- Slow
- Stratify
- No
- Propagation
- seed, bare root, 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 330 counties across 23 states/territories.
Alaska view state ↗ 8 N ▾
Illinois view state ↗ 7 N ▾
Indiana view state ↗ 11 N ▾
Iowa view state ↗ 2 N ▾
Maine view state ↗ 10 N ▾
Maryland view state ↗ 2 N ▾
Massachusetts view state ↗ 7 N ▾
Michigan view state ↗ 67 N ▾
- Alcona 26001
- Alger 26003
- Allegan 26005
- Arenac 26011
- Baraga 26013
- Barry 26015
- Benzie 26019
- Berrien 26021
- Branch 26023
- Calhoun 26025
- Cass 26027
- Charlevoix 26029
- Cheboygan 26031
- Chippewa 26033
- Clare 26035
- Clinton 26037
- Delta 26041
- Emmet 26047
- Genesee 26049
- Gladwin 26051
- Gogebic 26053
- Grand Traverse 26055
- Gratiot 26057
- Hillsdale 26059
- Houghton 26061
- Ingham 26065
- Ionia 26067
- Iosco 26069
- Iron 26071
- Isabella 26073
- Jackson 26075
- Kalamazoo 26077
- Kent 26081
- Keweenaw 26083
- Lake 26085
- Lapeer 26087
- Leelanau 26089
- Lenawee 26091
- Livingston 26093
- Mackinac 26097
- Manistee 26101
- Marquette 26103
- Mason 26105
- Mecosta 26107
- Menominee 26109
- Midland 26111
- Missaukee 26113
- Monroe 26115
- Montcalm 26117
- Montmorency 26119
- Muskegon 26121
- Newaygo 26123
- Oakland 26125
- Ogemaw 26129
- Ontonagon 26131
- Osceola 26133
- Oscoda 26135
- Ottawa 26139
- Presque Isle 26141
- Roscommon 26143
- Schoolcraft 26153
- St. Clair 26147
- St. Joseph 26149
- Van Buren 26159
- Washtenaw 26161
- Wayne 26163
- Wexford 26165
Minnesota view state ↗ 40 N ▾
- Aitkin 27001
- Anoka 27003
- Becker 27005
- Beltrami 27007
- Blue Earth 27013
- Carlton 27017
- Carver 27019
- Cass 27021
- Chippewa 27023
- Chisago 27025
- Clay 27027
- Clearwater 27029
- Cook 27031
- Crow Wing 27035
- Douglas 27041
- Houston 27055
- Itasca 27061
- Kandiyohi 27067
- Koochiching 27071
- Lake 27075
- Lake of the Woods 27077
- Le Sueur 27079
- Mahnomen 27087
- Mille Lacs 27095
- Morrison 27097
- Murray 27101
- Otter Tail 27111
- Pine 27115
- Polk 27119
- Ramsey 27123
- Rock 27133
- Scott 27139
- Sherburne 27141
- St. Louis 27137
- Stearns 27145
- Steele 27147
- Wabasha 27157
- Washington 27163
- Winona 27169
- Wright 27171
Montana view state ↗ 7 N ▾
Nebraska view state ↗ 6 N ▾
New Hampshire view state ↗ 7 N ▾
New Jersey view state ↗ 5 N ▾
New York view state ↗ 39 N ▾
- Albany 36001
- Allegany 36003
- Bronx 36005
- Cattaraugus 36009
- Cayuga 36011
- Chenango 36017
- Columbia 36021
- Cortland 36023
- Dutchess 36027
- Erie 36029
- Essex 36031
- Greene 36039
- Jefferson 36045
- Lewis 36049
- Madison 36053
- Monroe 36055
- Niagara 36063
- Oneida 36065
- Onondaga 36067
- Ontario 36069
- Orange 36071
- Oswego 36075
- Putnam 36079
- Queens 36081
- Rensselaer 36083
- Rockland 36087
- Saratoga 36091
- Schenectady 36093
- Schuyler 36097
- Seneca 36099
- St. Lawrence 36089
- Steuben 36101
- Tompkins 36109
- Ulster 36111
- Warren 36113
- Washington 36115
- Wayne 36117
- Westchester 36119
- Yates 36123
North Dakota view state ↗ 12 N ▾
Ohio view state ↗ 10 N ▾
Pennsylvania view state ↗ 9 N ▾
South Dakota view state ↗ 5 N ▾
Vermont view state ↗ 10 N ▾
Virginia view state ↗ 2 N ▾
West Virginia view state ↗ 2 N ▾
Wisconsin view state ↗ 57 N ▾
- Adams 55001
- Ashland 55003
- Bayfield 55007
- Brown 55009
- Burnett 55013
- Chippewa 55017
- Columbia 55021
- Dane 55025
- Douglas 55031
- Dunn 55033
- Eau Claire 55035
- Florence 55037
- Fond du Lac 55039
- Grant 55043
- Green Lake 55047
- Iowa 55049
- Iron 55051
- Jefferson 55055
- Kenosha 55059
- La Crosse 55063
- Langlade 55067
- Lincoln 55069
- Manitowoc 55071
- Marathon 55073
- Marinette 55075
- Marquette 55077
- Menominee 55078
- Milwaukee 55079
- Monroe 55081
- Oconto 55083
- Oneida 55085
- Outagamie 55087
- Pepin 55091
- Pierce 55093
- Polk 55095
- Portage 55097
- Price 55099
- Racine 55101
- Richland 55103
- Rock 55105
- Rusk 55107
- Sauk 55111
- Sawyer 55113
- Sheboygan 55117
- St. Croix 55109
- Taylor 55119
- Trempealeau 55121
- Vernon 55123
- Vilas 55125
- Walworth 55127
- Washburn 55129
- Washington 55131
- Waukesha 55133
- Waupaca 55135
- Waushara 55137
- Winnebago 55139
- Wood 55141
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/POZO ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/5301192 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T11:35:19Z