Herbarium Specimen Details

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton illinoensis Morong
Locality USA. Florida , Wakulla Co. : St. Marks River, between St. Marks and Newport. 30° 10' 60" N 84° 10' 0" W
Description Branched, branches extending forward in the current; only the tips emerging, no really floating leaves.
Habitat Flowing, clear, cool water.
Reproductive State Fertile
Collector R. K. Godfrey 53925
with R. Kral
Collection Date 24 Sep 1955
Accession Number 36490
Image 36490.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton lucens L.
Potamogeton illinoensis Morong - Determined By: B. F. Hansen, 1994
Locality USA. Florida , Lake Co. : Lake Eustis. 28° 51' 10" N 81° 41' 7" W
Reproductive State Fertile
Collector A. H. Curtiss 6692
Collection Date 19 Jul 1900
Accession Number 209593
Image 209593.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton illinoensis Morong
Locality USA. Florida , Jackson Co. : Lake Seminole, N of Sneads. 30° 42' 28" N 84° 55' 28" W
Description Very abundant.
Habitat Zone ca. 15–20 ft. wide around edge of arm of lake; P. pusillus in same zone; P. capillaceus nearby.
Reproductive State Fertile
Collector W. P. Adams 444
Collection Date 13 May 1960
Accession Number 44958
Image 44958.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton lucens L.
Potamogeton illinoensis Morong - Determined By: Lakela, May 1968
Potamogeton illinoensis Morong - Determined By: Ogden, 1973
Locality USA. Florida , Miami-Dade Co. : Tamiami Trail, ca. 35 mi. W of Miami. 25° 45' 31" N 80° 23' 54" W
Description Flowers green; attached to bottom.
Habitat Canal, completely submerged.
Reproductive State Fertile
Collector R. Metzger 176
Collection Date 13 Apr 1965
Accession Number 74522
Image 74522.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong
Locality USA. Florida , Hillsborough Co. : Hillsborough River State Park. River Rapids Overlook. 27° 55' 0" N 82° 20' 60" W
Description Aquatic herb; leaves both submerged and floating in long streamers; fruit spikes stiffly emergent.
Habitat Current of blackwater stream.
Reproductive State Fertile
Collector C. vanHoek
with B. Worth
Collection Date 28 May 2010
Accession Number 259065
Image 259065.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton illinoensis Morong - Determined By: Ogden, 1973
Locality USA. Florida , Wakulla Co. : St. Marks River, between St. Marks and Newport. 30° 10' 60" N 84° 10' 0" W
Description Several-times branched, the tip-most leaves floating.
Habitat Flowing, clear, cool water.
Reproductive State Fertile
Collector R. K. Godfrey 53923
with R. Kral
Collection Date 24 Sep 1955
Accession Number 36505
Image 36505.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton illinoensis Morong
Locality USA. Florida , Dixie Co. : Near boundary of Steinhatchee Wildlife Management Area, ca. 4–5 mi. NE of Cross City and just N of FL 351. 29° 40' 0" N 83° 22' 60" W
Description Very abundant; fruiting plants lax; erect, vegetative plants with shiny olive-reddish leaves, strikingly attractive, looked like young cabbage plants [Pistia?] except for color.
Habitat Margin of recent borrow pit, in water ca. 1 dm deep with other crud.
Reproductive State Fertile
Collector S. W. Leonard 6249
Collection Date 03 Apr 1976
Accession Number 124998
Image 124998.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton illinoensis Morong
Locality USA. Florida , Hillsborough Co. : N end of Lake Magdalene.
Description Common; submersed aquatic.
Reproductive State Fertile
Collector C. G. Wright 79
Collection Date 23 Aug 1978
Accession Number 135623
Image 135623.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton lucens L.
Potamogeton illinoensis Morong - Determined By: Ogden, 1973
Locality USA. Florida , Miami-Dade Co. : Coral Gables.
Reproductive State Fertile
Collector W. M. Buswell
Collection Date 20 Nov 1935
Accession Number 78929
Image 78929.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong
Locality USA. Florida , Polk Co. : Mountain Lake.
Reproductive State Fertile
Collector K. J. Ruesch
Collection Date Oct 2006
Accession Number 243115
Image 243115.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton lucens L.
Potamogeton illinoensis Morong - Determined By: Ogden, 1973
Locality USA. Florida , Miami-Dade Co. : Tamiami Canal, E of junction FL 94. 25° 45' 31" N 80° 23' 54" W
Habitat Canal and bank.
Reproductive State Fertile
Collector O. K. Lakela 30487
with F. Almeda
Collection Date 21 Dec 1966
Accession Number 78804
Image 78804.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton fluitans L.
Potamogeton lucens L.
Potamogeton illinoensis Morong - Determined By: Ogden, 1973
Locality USA. Florida , Miami-Dade Co. : 25° 36' 32" N 80° 29' 55" W
Reproductive State Fertile
Collector R. O. Woodbury
Collection Date 18 Jan 1942
Accession Number 78930
Image 78930.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton illinoensis Morong
Potamogeton illinoensis Morong - Determined By: Ogden, 1973
Locality USA. Florida , Citrus Co. : Near Hernando, Lake Tsala Apopka, W side. 28° 53' 60" N 82° 22' 28" W
Description Foliage submersed; inflorescence emersed.
Habitat Depths of 4–6 ft.; wet margin of lake bordered by dry hammock.
Reproductive State Fertile
Collector G. R. Cooley 8234
with R.J. Eaton, Esq., C.E. Wood, Jr., C.E. Smith, Jr.
Collection Date 02 May 1961
Accession Number 43052
Image 43052.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong
Locality USA. Florida , Hillsborough Co. : Hillsborough River State Park. Hillsborough River, rapids E of overlook. T27S, R21E, Sec. 8, SW¼ of SW¼ of NE¼. 27° 55' 0" N 82° 20' 60" W
Description Visible due to low water.
Habitat Blackwater stream.
Reproductive State Fertile
Collector K. Alvarez
with E. Jensen, C. Olson
Collection Date 31 May 2006
Accession Number 244480
Image 244480.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton illinoensis Morong
Potamogeton illinoensis Morong - Determined By: Ogden, 1973
Locality USA. Florida , Wakulla Co. : Lower Bridge, Wakulla River. 30° 10' 0" N 84° 19' 60" W
Habitat Deep, swiftly flowing water.
Reproductive State Fertile
Collector R. K. Godfrey 52814
with R.N. Jervis
Collection Date 22 Jan 1955
Accession Number 259344
Image 259344.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton illinoensis Morong - Determined By: Kral,
Potamogeton illinoensis Morong - Determined By: Ogden, 1973
Locality USA. Florida , Jefferson Co. : Wacissa River head waters. 30° 21' 0" N 83° 58' 60" W
Description Abundant; upper leaves floating; flowers floating.
Habitat In 1–3 ft. of flowing water; sandy-shell bottom.
Reproductive State Fertile
Collector R. Kral 2286
with J.P. Gillespie
Collection Date 15 Apr 1956
Accession Number 384
Image 384.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong
Locality USA. Florida , Brevard Co. : South Central Regional Wastewater System (SCREWS), Vierra Wetlands. 28° 13' 42" N 80° 45' 47" W
Description Abundant; herb rooted, floating, leaves green with slight reddish tint.
Habitat Flag marsh; soil water.
Reproductive State Fertile
Collector T. MacClendon 296
with K.R. Weichman, J. Stahl
Collection Date 01 Sep 2004
Accession Number 239653
Image 239653.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton illinoensis Morong
Locality USA. Florida , Hillsborough Co. : Hillsborough River, N of Fletcher Bridge. 27° 55' 0" N 82° 20' 60" W
Description Submerged aquatic with floating leaves.
Habitat River.
Reproductive State
Collector C. G. Wright
Collection Date 02 May 1979
Accession Number 141773
Image 141773.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton lucens L.
Potamogeton illinoensis Morong - Determined By: Lakela,
Potamogeton illinoensis Morong - Determined By: Ogden, 1973
Locality USA. Florida , Miami-Dade Co. : Everglades National Park. 25° 57' 18" N 80° 44' 41" W
Description Floating.
Habitat Pineland pond, near the bank.
Reproductive State Fertile
Collector O. K. Lakela 27310
with F.C. Craighead
Collection Date 19 Jul 1964
Accession Number 60645
Image 60645.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton illinoensis Morong
Locality USA. Florida , Jackson Co. : Lake Seminole, N of Sneads. 30° 42' 28" N 84° 55' 28" W
Description Very abundant.
Habitat Zone ca. 15–20 ft. wide around edge of arm of lake; P. pusillus in same zone; P. capillaceus nearby.
Reproductive State Fertile
Collector W. P. Adams 444
Collection Date
Accession Number 41451
Image 41451.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton illinoensis Morong
Locality USA. Florida , Lake Co. : Lake George near Juniper Creek. 30° 31' 60" N 84° 45' 0" W
Reproductive State Fertile
Collector R. F. Daubenmire
with J. Daubenmire
Collection Date 01 May 1981
Accession Number 180133
Image 180133.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton illinoensis Morong - Determined By: Lakela,
Potamogeton illinoensis Morong - Determined By: Ogden, 1973
Locality USA. Florida , Hillsborough Co. : Hillsborough River State Park. Hillsborough River. 27° 55' 0" N 82° 20' 60" W
Description Plant 6 m long.
Habitat Swift current of river.
Reproductive State
Collector C. Barilotti
with C. Dawes
Collection Date 28 Oct 1966
Accession Number 77434
Image 77434.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton illinoensis Morong
Potamogeton illinoensis Morong - Determined By: Ogden, 1973
Locality USA. Florida , Hillsborough Co. : Hillsborough River State Park. NE of Tampa off US 301; downstream from the suspension bridge. 27° 55' 0" N 82° 20' 60" W
Description Abundant; to 2–3 m long; mature fruits and flowers few; fruits fully 3 mm long.
Habitat Swift current of rapids, bank to bank.
Reproductive State Fertile
Collector O. K. Lakela 26513
with W. Starks
Collection Date 01 Oct 1963
Accession Number 56764
Image 56764.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton illinoensis Morong
Locality USA. Florida , Wakulla Co. : St. Marks River between St. Marks and Newport. 30° 10' 60" N 84° 10' 0" W
Description Branched several times, the branches flowing forward in the current, none of the leaves emersed.
Habitat Flowing, clear, cool water.
Reproductive State Fertile
Collector R. K. Godfrey 53924
with R. Kral
Collection Date 24 Sep 1955
Accession Number 36488
Image 36488.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton illinoensis Morong - Determined By: Ogden, 1973
Locality USA. Florida , Wakulla Co. : Wakulla River near Wakulla Spring. 30° 10' 0" N 84° 19' 60" W
Reproductive State Fertile
Collector J. K. Small 12870
with C.A. Mosier, P.A. Matthaus
Collection Date 09 May 1926
Accession Number 18498
Image 18498.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton illinoensis Morong
Locality USA. Florida , Charlotte Co. : Along US 41, ca. 7 mi. S of junction with FL 17 to 0.1 mi. S [?] of Lee Co. line. 30° 25' 11" N 83° 18' 2" W
Reproductive State
Collector J. Beckner 2662
Collection Date 03 Sep 1984
Accession Number 181388
Image 181388.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton lucens L.
Potamogeton illinoensis Morong - Determined By: Lakela,
Potamogeton illinoensis Morong - Determined By: Ogden, 1973
Locality USA. Florida , Miami-Dade Co. : Off US 27, ca. 1 mi. N of US 41 junction.
Description Abundant; flowering and fruiting; foliage coated with lime.
Habitat Pond adjoining canal; in shallow water.
Reproductive State Fertile
Collector O. K. Lakela 26870
Collection Date 11 Mar 1964
Accession Number 58782
Image 58782.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong
Locality USA. Florida , Hardee Co. : Paynes Creek Historic State Park. 0.05 km W of Peace River, 2.2 km E of US 17, 3 km S of the Polk County line. 27° 37' 9" N 81° 49' 9" W
Description Upper leaves floating, lower leaves submerged.
Habitat Middle of creek; sandy bottom.
Reproductive State Fertile
Collector A. R. Franck 3315
with P.J. Simoes
Collection Date 09 May 2014
Accession Number 273515
Image 273515.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton illinoensis Morong
Locality USA. North Carolina , Brunswick Co. : Orton Pond, 1 mi. E of NC 133 on Old Brunswick Town Road.
Reproductive State Fertile
Collector J. F. Parnell 6
Collection Date 16 Aug 1968
Accession Number 89441
Image 89441.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton illinoensis Morong
Locality USA. North Carolina , Brunswick Co. : Along dam of Orton Pond of NC 133.
Reproductive State Fertile
Collector S. W. Leonard 2007
with D. Culwell, M. Ripperton
Collection Date 14 Sep 1968
Accession Number 86548
Image 86548.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: R. R. Haynes, 2000
Determination History
Potamogeton illinoensis Morong
Locality USA. Georgia , Seminole Co. : Beside GA 253; near Lake Seminole State Park.
Habitat Fishpond.
Reproductive State Fertile
Collector S. B. Jones 23658
with J. Stutts, A. Gholson
Collection Date 05 Sep 1979
Accession Number 161514
Image 161514.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong
Locality USA. Florida , Pinellas Co. : Lake Tarpon. 28° 6' 59" N 82° 43' 41" W
Reproductive State Fertile
Collector M. Morgan
Collection Date 26 Aug 2015
Accession Number 281642
Image 281642.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong
Locality USA. Florida , Okeechobee Co. : Okeechobee. 27° 14' 38" N 80° 49' 47" W
Reproductive State Fertile
Collector M. L. Gilbert
Collection Date 17 Apr 1955
Accession Number 287722
Image 287722.JPG
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong
Locality USA. Florida , Orange Co. : North Shore Wildlife Drive, N shore of Lake Apopka, Apopka. 28° 40' 9" N 81° 34' 60" W
Habitat Lake shore.
Reproductive State Fruit
Collector S. Myers
Collection Date 30 Jan 2016
Accession Number 293037
Image 293037.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong
Locality USA. Florida , Monroe Co. : BICY [Big Cypress National Preserve]; Loop Road, Golightly's. 30° 41' 60" N 85° 4' 0" W
Habitat Disturbed lake.
Reproductive State Fertile
Collector J. N. Burch
Collection Date 07 Mar 2008
Accession Number 290117
Image 290117.JPG
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong
Locality USA. Florida , Monroe Co. : BICY [Big Cypress National Preserve]; Loop Road, Golightly's. 30° 41' 60" N 85° 4' 0" W
Habitat Disturbed lake; 2 years post fill removal, marl prairie restoration area..
Reproductive State Fertile
Collector J. N. Burch
Collection Date 14 Nov 2014
Accession Number 290118
Image 290118.JPG
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong
Locality Mexico. San Luis Potosí Rio Naranjo "Falls" at El Salto. 21° 38' 2" N 98° 50' 25" W
Description Abundant.
Habitat In outlet of Hydroelectric plant.
Reproductive State
Collector R. R. Haynes
Collection Date 27 Dec 1975
Accession Number 152071
Image 152071.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong
Locality Mexico. Chiapas , San Cristóbal las Casas Mun. : Along the bank of the reservoir of Rancho Nuevo, 9 mi. SE of San Cristóbal las Casas on Mexican Highway 190. 16° 30' 28" N 92° 24' 38" W
Habitat Grassy slope with Pinus and Quercus.
Reproductive State
Elevation 7800 to ft
Collector D. E. Breedlove
with P.H. Raven
Collection Date 17 Oct 1965
Accession Number 92920
Image 92920.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong
Locality Guatemala. Sololá Dept. Lago de Atitlán near village of San Marcos.
Description Locally abundant.
Habitat Muddy substrate, water ca. 1-10 ft. deep; with P. striatus and Scirpus.
Reproductive State
Collector R. R. Haynes
Collection Date 23 Mar 1981
Accession Number 171644
Image 171644.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong
Locality Mexico. Tamaulipas In Aldama. 23° 44' 32" N 99° 9' 33" W
Description Abundant.
Habitat In flowing water; stream; water at 2 ft. feep.
Reproductive State
Collector R. R. Haynes
Collection Date 14 Dec 1975
Accession Number 152045
Image 152045.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong
Locality USA. Florida , Miami-Dade Co. : At Miller Lake, Miller Road and Palmetto Expressway. 27° 31' 17" N 82° 34' 20" W
Description Abundant, forming an almost solid bottom cover and filling the water column to the surface.
Reproductive State Fertile
Collector R. E. Mossman
Collection Date 18 Nov 1973
Accession Number 298271
Image 298271.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong
Locality USA. California , San Bernardino Co. : E end of Bluff Lake; S of Big Bear Lake. 38° 42' 0" N 122° 12' 0" W
Habitat In shallow water along margins of lake; coniferous forest surrounding; with Pinus jeffreyi, P. contorta, Ceanothus leucodermis, Symphoricarpus parishii; also with Eleocharis macrostachya, Sagttaria cuneata in water/lake margin.
Reproductive State Fertile
Elevation 7600 to ft
Collector C. Davidson
Collection Date 16 Aug 1975
Accession Number 123628
Image 123628.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong
Locality USA. Minnesota , Clearwater Co. : Itasca State Park; Lake Itasca. 47° 30' 0" N 93° 34' 60" W
Description Common.
Reproductive State Fertile
Collector K. E. Rogers
Collection Date 21 Jul 1974
Accession Number 116844
Image 116844.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong
Locality USA. Texas , Val Verde Co. : Devil's River; old bridge crossing on US 90. 28° 19' 0" N 98° 31' 60" W
Reproductive State Fertile
Collector J. Lewis
Collection Date 30 Jun 1968
Accession Number 105430
Image 105430.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: Ogden, 1973
Determination History
Potamogeton illinoensis Morong
Locality USA. Pennsylvania , Lehigh Co. : Lehigh River; Bethlehem. 40° 45' 0" N 75° 37' 0" W
Reproductive State Fertile
Collector J. Wolle
Collection Date 1838
Accession Number 64675
Image 64675.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: Ogden, 1973
Determination History
Potamogeton nodosus Poir.
Locality USA. Texas , Travis Co. : Barton Springs Creek; near junction with Colorado River; Austin. 30° 16' 2" N 97° 44' 35" W
Description Locally abundant.
Reproductive State Fertile
Collector C. M. Rowell
Collection Date 30 Nov 1963
Accession Number 100903
Image 100903.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: Ogden, 1973
Determination History
Potamogeton illinoensis Morong
Locality USA. California , San Bernardino Co. : San Gabriel Mtns.; San Bernardino Nat. Forest; Lost Lake at lower end of Lone Pine CANYON. 37° 49' 54" N 122° 11' 16" W
Habitat Forming dense sheets of floating vegetation in shallow water at lake margins with Ludwigia repens and Lythrum hyssopifolium, Arundo donax, Scirpus validus.
Reproductive State Fertile
Elevation 2700 to ft
Collector R. F. Thorne
with M.Z. Thorne
Collection Date 29 Aug 1966
Accession Number 94885
Image 94885.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong
Locality USA. Minnesota , Becker Co. : Along US 113; ca. 3 mi. E of Bad Medicine Lake.
Habitat Shallows of small lake.
Reproductive State Fertile
Collector V. E. McNeilus
Collection Date 08 Aug 1992
Accession Number 208303
Image 208303.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong
Locality USA. Wisconsin , Sawyer Co. : Teal Lake; ca. 20 mi. ENE of Hayward. T42N, R6W, Sec. 26. 46° 0' 47" N 91° 29' 5" W
Reproductive State Fertile
Collector B. F. Hansen
Collection Date 08 Aug 1986
Accession Number 205759
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Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: Ogden, 1973
Determination History
Potamogeton illinoensis Morong
Locality USA. Texas , Gillespie Co. : Pedernales River; 3 mi. E of Fredericksburg. 30° 16' 31" N 98° 52' 19" W
Habitat Attached to bottom of stream; no floaters; pH 7.4.
Reproductive State Fertile
Collector D. S. Correll
with E.C. Ogden
Collection Date 18 May 1962
Accession Number 67955
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Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: S. R. Hill, 2002
Locality USA. Illinois , Lake Co. : NW portion of Cedar Lake; ca. 1 mi. NW of Lake Villa; between IL 83/132; Antioch 7.5 min. quad. T46N, R10E, Sec. 32, SE¼, NW¼. 42° 24' 60" N 88° 5' 33" W
Description Subermged aquatic herb; conspicuously undulate to nearly planar; resembles underwater Cordyline.
Habitat Private beach; shallow water; sand and muck; alkaline; Potamogeton spp., Nyphaea tuberosa, Myriophyllum, Najas; infrequent; leaves like crispy leuuce; thin fragile; most plants detached.
Reproductive State Fertile
Elevation 791 to ft
Collector S. R. Hill
Collection Date 09 Aug 2002
Accession Number 266829
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Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: S. R. Hill, 2002
Locality USA. Illinois , Lake Co. : SW portion of Cedar Lake; Lake Vila; N of IL 132; W of private beach; Antioch 7.5' quad. T46N, R10E, Sec. 32, SE¼, SW¼. 42° 24' 58" N 88° 5' 37" W
Description Aquatic herbs; occasional to locally common; leaves shiny both sides; often encrusted with calcium carbonate; translucent.
Habitat Shallow water 1 m. deep; glacial sand and muck; alkaline; Potamogeton spp., Nyphaea tuberosa, Myriophyllum, Najas, charophytes.
Reproductive State Fertile
Elevation 791 to ft
Collector S. R. Hill
Collection Date 09 Aug 2002
Accession Number 266893
Image 266893.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: Ogden, 1973
Determination History
Potamogeton illinoensis Morong
Locality USA. Illinois MS bottoms near Oquawka. 40° 55' 55" N 90° 56' 50" W
Habitat Ponds.
Reproductive State Fertile
Collector H. N. Patterson
Collection Date Sep 1881
Accession Number 22121
Image 22121.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: Ogden, 1973
Determination History
Potamogeton illinoensis Morong
Locality USA. Texas , Culberson Co. : S fork of McKittrick Canyon; Guadelupe Mountains. 34° 58' 49" N 101° 55' 8" W
Habitat Attached to bottom of quiet shaded pool or open pools with Chara; stones in water reddish.
Reproductive State Fertile
Collector D. S. Correll
with E.C. Ogden
Collection Date 30 Apr 1962
Accession Number 67930
Image 67930.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: Ogden, 1973
Determination History
Potamogeton illinoensis Morong
Locality USA. California , Los Angeles Co. : San Gabriel Mtns.; Angeles Nat. Forest; Crystal Lake Rec. Area; upper end of canyon of N fork of SG River. 39° 54' 60" N 120° 10' 57" W
Habitat 2-3m. Deep water; with potamogeton pectinatus, Ceratophyllum demersum, and charophytes.
Reproductive State Fertile
Elevation 5500 to ft
Collector R. F. Thorne
with M.Z. Thorne
Collection Date 29 Aug 1966
Accession Number 94883
Image 94883.jpg
Plant Atlas Link Plant Atlas Citation

Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong - Determined By: Ogden, 1973
Determination History
Potamogeton nodosus Poir.
Locality USA. Texas , Travis Co. : Barton Springs Creek near junction with Colorado River; Austin. 30° 16' 2" N 97° 44' 35" W
Description Locally abundant.
Reproductive State Fertile
Collector C. M. Rowell
Collection Date 30 Nov 1963
Accession Number 90246
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Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong
Locality USA. Minnesota , Becker Co. : Elbow Lake; ca. 18 mi. E of Waubun along US 113. 47° 10' 50" N 95° 56' 21" W
Habitat Shallows.
Reproductive State Fertile
Collector V. E. McNeilus
Collection Date 21 Jul 1997
Accession Number 261453
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Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong
Locality USA. Texas , Menard Co. : San Saba River just NE of Fort McKavett.
Habitat Attached to bottom in current.
Reproductive State Fertile
Collector D. S. Correll
with C. Schweinfurth
Collection Date 04 Jun 1962
Accession Number 67931
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Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong
Locality USA. Florida , Hillsborough Co. : Hillsborough River.
Reproductive State Fertile
Collector M. L. Gilbert
with P.A. Roberts, B. Boyer
Collection Date Oct 1965
Accession Number 301998
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Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong
Locality USA. Florida , Hillsborough Co. : Lake Dan Nature Preserve, Odessa; adjacent to N shore of Lake Dan, ca. 70 m W of dock. 28° 10' 2" N 82° 38' 49" W
Description Plants submerged with floating leaves and bearing emergent floral spikes.
Habitat Adjacent to lake shore.
Reproductive State Fertile
Collector S. Dickman
Collection Date 29 Aug 2016
Accession Number 303633
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Potamogeton illinoensis
Family Name Potamogetonaceae
Currently Accepted Name Potamogeton illinoensis Morong
Locality USA. Florida , Wakulla Co. : Wakulla Springs; Wakulla River, at C-365 bridge. T3S, R1E, Sec. 20.
Habitat Spring run assemblage (open): Hydrilla verticillata, Sagittaria kurziana, Vallisneria americana; some isolated water lilies.
Reproductive State
Collector C. M. Owsley
Collection Date 18 Jul 1987
Accession Number 304327
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