[Specimen details]

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas flexilis (Willd.) Rostk. & W.L.E. Schmidt
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: R. R. Haynes, 1974
Locality USA. Florida , Monroe Co. : Pinecrest Road, FL 94, SE of Monroe Station. 25° 44' 48" N 80° 56' 22" W
Habitat Cypress [Taxodium] pond, intervening glades, pinelands, creeks and ditches.
Reproductive State Fertile
Collector O. K. Lakela 29926
with J.D. Boer
Collection Date 28 May 1966
Accession Number 74535
Image 74535.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus
Locality USA. Florida , Lake Co. : Juniper Creek. 30° 31' 60" N 84° 45' 0" W
Habitat Near mouth of creek.
Reproductive State Fertile
Collector R. Daubenmire
with J. Daubenmire
Collection Date 01 May 1981
Accession Number 177915
Image 177915.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz
Locality USA. Florida , Charlotte Co. : US 41, 2 mi. N of Lee County line, ca. 12 mi. SE of Punta Gorda. 30° 25' 11" N 83° 18' 2" W
Description Abundant.
Habitat Shallow water of roadside ditch.
Reproductive State Fertile
Collector L. J. Davenport 1703
Collection Date 29 Mar 1980
Accession Number 152023
Image 152023.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz
Najas guadalupensis (Spreng.) Magnus - Determined By: R. R. Haynes, 1980
Locality USA. Florida , Hillsborough Co. : Lake Saddleback Near Saddle.
Description Frequent; submersed.
Reproductive State Fertile
Collector C. G. Wright 107
Collection Date 15 Sep 1978
Accession Number 139650
Image 139650.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas guadalupensis (Spreng.) Magnus
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: R. R. Haynes & A. Wentz, 1974
Locality USA. Florida , Franklin Co. : Apalachicola River, 1-3 mi. N of railroad bridge NW of Apalachicola. 29° 43' 21" N 84° 58' 53" W
Description Occasional as submerged mats.
Habitat Shallow water.
Reproductive State Fertile
Collector R. Kral 2746
with P.L. Redfearn
Collection Date 29 Jun 1956
Accession Number 35797
Image 35797.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas flexilis (Willd.) Rostk. & W.L.E. Schmidt
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: R. R. Haynes & A. Wentz, 1974
Locality USA. Florida , Collier Co. : Remuda Ranch Estates.
Habitat Road embankements along canals marginal to cypress [Taxodium] swamps.
Reproductive State Fertile
Collector O. K. Lakela 31527
with F. Almeda
Collection Date 30 Jul 1968
Accession Number 83982
Image 83982.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus
Locality USA. Florida , Brevard Co. : Upper St. Johns River, Cowland Transect, between Lake Winder and Lake Poinsett, W bank.
Description Submersed aquatic.
Habitat In water.
Reproductive State Fertile
Elevation 10 to ft
Collector R. Hestand 14
with D. Auth
Collection Date 23 Jun 1971
Accession Number 236002
Image 236002.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: R. R. Haynes & A. Wentz,
Najas guadalupensis (Spreng.) Magnus
Locality USA. Florida , Citrus Co. : Homosassa River. 28° 46' 53" N 82° 36' 54" W
Habitat Fresh water.
Reproductive State Fertile
Collector G. R. Cooley 5909
with J.H. Davis
Collection Date 11 Apr 1958
Accession Number 388
Image 388.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz
Locality USA. Florida , Wakulla Co. : Wakulla River, NW of St. Marks on US 98. T3S, R1E, Sec. 33. 30° 14' 13" N 84° 13' 52" W
Reproductive State Fertile
Collector R. P. Wunderlin 10331
with B.F. Hansen
Collection Date 18 Jul 1986
Accession Number 189611
Image 189611.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus
Locality USA. Florida , Citrus Co. : Homosassa River. 28° 46' 53" N 82° 36' 54" W
Habitat Clear water - quiet flowing to stiff flow; bottom - muddy to sandy.
Reproductive State Fertile
Collector R. C. Phillips
Collection Date 08 Apr 1961
Accession Number 201262
Image 201262.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas flexilis (Willd.) Rostk. & W.L.E. Schmidt
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: Wunderlin, 1978
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: R. R. Haynes, 1980
Locality USA. Florida , Brevard Co. : N Merritt's Island. T21S, R36E, Sec. 19, NE¼.
Description Aquatic.
Habitat Edge of limestone quarry in deep water along cattails [Typha].
Reproductive State Fertile
Collector A.G. Shuey
Collection Date 11 Aug 1972
Accession Number 121160
Image 121160.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas flexilis (Willd.) Rostk. & W.L.E. Schmidt
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: Wunderlin, 1978
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: Haynes, 1980
Locality USA. Florida , Brevard Co. : N Merritt's Island. T21S, R36E, Sec. 19, NE¼.
Description Aquatic.
Habitat Edge of limestone quarry in deep water along with cattails [Typha].
Reproductive State Fertile
Collector A.G. Shuey
Collection Date 11 Aug 1972
Accession Number 119190
Image 119190.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus
Locality USA. Florida , Collier Co. : Old Marco Road, pool adjacent to 2nd major culvert. T51S, R27E, Sec. 27, SW¼ of SW¼ of SW¼. 25° 58' 0" N 81° 43' 0" W
Description Leaves sheathing and ovscurely toothed.
Habitat Stream.
Reproductive State Fertile
Collector B. Hattaway
Collection Date 22 Jul 1998
Accession Number 230725
Image 230725.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus
Locality USA. Florida , Collier Co. : Big Cypress National Preserve; Turner River Canal just S of Tamiami Trail, opposite Turner River Road (C-839). 25° 45' 31" N 80° 23' 54" W
Reproductive State Fertile
Collector K. A. Bradley 1595
Collection Date 29 Mar 1998
Accession Number 233102
Image 233102.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: B. F. Hansen, 1993
Determination History
Ruppia maritima L.
Locality USA. Florida , Monroe Co. : Long Key Recreation Area, Long Key; along US 1 near park entrance.
Description Rooted in substrate; stems and leaves floating.
Habitat Brackish pool.
Reproductive State Fertile
Collector A. Herndon 1404
Collection Date 23 Feb 1986
Accession Number 208172
Image 208172.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus
Locality USA. Florida , Columbia Co. : Ichetucknee Springs State Park.
Habitat Spring pool.
Reproductive State Fertile
Collector D. S. Correll 53127
with H.B. Correll
Collection Date 03 Nov 1981
Accession Number 161097
Image 161097.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus
Locality USA. Florida , Columbia Co. : 6 mi. NW of Fort White off C-238 in Ichetucknee Springs State Park; ca. 1.6 mi. S of N entrance on E side of Ichetucknee River at W end of Mill Pond Springs. T6S, R16E, Sec. 18.
Description Infrequent submerged aquatic herb; stems maroon.
Habitat Spring-fed channel of river; with Sagittaria kurziana and Ludwigia repens.
Reproductive State Fertile
Collector B. J. Herring 931
with D. Herring
Collection Date 18 Sep 1992
Accession Number 211396
Image 211396.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: B. F. Hansen, Jan 2011
Determination History
Najas filifolia R. R. Haynes
Locality USA. Florida , Brevard Co. : SW shoreline of Lake Winder (St. Johns River). T26S, R35E, Sec. 8. 28° 14' 23" N 80° 50' 56" W
Description Common; free floating and stranded.
Habitat Between Phragmites australis islands.
Reproductive State Fertile
Collector C. Slaughter 17912
with D.L. Hall, T. Miller
Collection Date 12 Oct 2010
Accession Number 257105
Image 257105.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: J. M. Kunzer, Aug 2007
Determination History
Hydrilla verticillata (L. f.) Royle
Locality USA. Florida , Glades Co. : NW of Lake Okeechobee in Paradise Run, area S of lock S-65E on Kissimmee River C38 Canal. 28° 17' 28" N 81° 24' 25" W
Habitat Water of small drainage ditch in flat pasture land.
Reproductive State Fertile
Collector N. C. Coile 2474
with G. Pierce
Collection Date 03 Sep 1981
Accession Number 192104
Image 192104.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: Wunderlin, 1989
Determination History
Hydrilla verticillata (L. f.) Royle
Locality USA. Florida , Pinellas Co. : Clearwater Sewage Treatment Plant, FL 580; along C-611 (Magnolia Creek). 27° 57' 54" N 82° 54' 40" W
Habitat Ditch.
Reproductive State Fertile
Collector G. Fleming 4173
Collection Date 13 Nov 1988
Accession Number 198620
Image 198620.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus
Locality USA. Florida , Brevard Co. : Viera Wetlands, NE Pond. 28° 13' 44" N 80° 46' 38" W
Description Common; green, no fruit or flowers.
Habitat Water.
Reproductive State
Collector T. MacClendon 279
with K.R. Weichman
Collection Date 30 Jul 2004
Accession Number 239441
Image 239441.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz
Locality USA. Florida , Alachua Co. : Paynes Prairie State Preserve. S of Gainesville, Alachua Lake, ca. 1 mi. S of Alachua Sink. T10S, R20E, Sec. 27, NW¼. 29° 39' 5" N 82° 18' 38" W
Description Submerged.
Habitat Water to 1 m deep, substrate mucky.
Reproductive State
Collector J. C. Easterday 600
Collection Date 06 Jul 1981
Accession Number 170184
Image 170184.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas flexilis (Willd.) Rostk. & W.L.E. Schmidt
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: Wunderlin, 1978
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: R. R. Haynes, 1980
Locality USA. Florida , Brevard Co. : N Merritt's Island. T21S, R36E, Sec. 19, NW¼.
Habitat Edge of limestone quarry in deep water along with cattails [Typha].
Reproductive State
Collector A.G. Shuey
Collection Date 11 Aug 1972
Accession Number 120224
Image 120224.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas guadalupensis (Spreng.) Magnus
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: Wunderlin, 1978
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: R. R. Haynes, 1980
Locality USA. Florida , Brevard Co. : N Merritt's Island.
Habitat Pond.
Reproductive State
Collector A.G. Shuey
with J.E. Poppleton
Collection Date 17 Apr 1975
Accession Number 124668
Image 124668.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz
Locality USA. Florida , Pasco Co. : Pithlachascotee River. T26S, R16E, Sec. 10.
Habitat Water in river.
Reproductive State
Collector M. Lopez
with J. Massey
Collection Date 03 Jun 1986
Accession Number 189630
Image 189630.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz
Locality USA. Florida , Collier Co. : Ca. 4 mi. N of Sunniland along the road to Immokalee. 26° 25' 10" N 81° 25' 13" W
Description Abundant.
Habitat Roadside canal; sandy soil of pine savanna.
Reproductive State
Collector R. R. Haynes 4469
Collection Date 02 Jan 1975
Accession Number 152020
Image 152020.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas flexilis (Willd.) Rostk. & W.L.E. Schmidt
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: Wunderlin, 1978
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: R. R. Haynes, 1980
Locality USA. Florida , Brevard Co. : N Merritt Island. T22S, R36E, Sec. 3, NE¼.
Habitat Ditch.
Reproductive State
Collector J. E. Poppleton
with A.G. Shuey
Collection Date 17 Aug 1972
Accession Number 124686
Image 124686.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas guadalupensis (Spreng.) Magnus
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: R. R. Haynes & A. Wentz, 1974
Locality USA. Florida , Lee Co. : Sanibel Island. 26° 26' 56" N 82° 1' 20" W
Habitat Fresh water in pit dug for road material.
Reproductive State
Collector G. R. Cooley 2311
Collection Date 20 Jul 1954
Accession Number 10878
Image 10878.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz
Locality USA. Florida , Lee Co. : Business US 41 in N Ft. Myers, 2.4 mi. N of the Caloosahatchee River. 26° 34' 60" N 81° 58' 60" W
Description Common.
Habitat 2 ft of water in roadside ditch.
Reproductive State
Collector L. J. Davenport 2050
Collection Date 25 Jul 1980
Accession Number 152022
Image 152022.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz
Locality USA. Florida , Lee Co. : FL 82 at junction with Buckingham Road, ca. 7 mi. E of Ft. Myers. 26° 40' 30" N 81° 43' 55" W
Description Abundant.
Habitat Shallow water of extensive swamp.
Reproductive State
Collector L. J. Davenport 1711
Collection Date 29 Mar 1980
Accession Number 152024
Image 152024.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas guadalupensis (Spreng.) Magnus
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: R. R. Haynes & A. Wentz, 1974
Locality USA. Florida , Leon Co. : St. Marks River at Natural Bridge, E of Woodville. 30° 18' 51" N 84° 14' 51" W
Description Abundant.
Habitat Switfly flowing clear water.
Reproductive State
Collector R. K. Godfrey 52866
Collection Date 31 Jan 1955
Accession Number 389
Image 389.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas guadalupensis (Spreng.) Magnus
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: R. R. Haynes, 1975
Locality USA. Florida , Sumter Co. : Sumter - Citrus Wildlife Management Area. Withlacoochee, W of Bushnell. 28° 39' 54" N 82° 6' 46" W
Description Frequent.
Habitat Shallow backwater.
Reproductive State
Collector R. Kral 7855
Collection Date 13 Aug 1958
Accession Number 2649
Image 2649.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: R. R. Haynes & A. Wentz, 1974
Locality USA. Florida , Wakulla Co. : Wakulla River, near Wakulla Springs. 30° 14' 13" N 84° 13' 52" W
Reproductive State
Collector J. K. Small 12871
with C.A. Mosier, P.A. Matthaus
Collection Date 09 May 1926
Accession Number 18504
Image 18504.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas flexilis (Willd.) Rostk. & W.L.E. Schmidt
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: R. R. Haynes & A. Wentz, 1974
Locality USA. Florida , Pasco Co. : Headwaters of Hillsborough River; Crystal Springs. 27° 55' 0" N 82° 20' 60" W
Description Few flowers and young fruits noted in leaf axils.
Habitat Upcurrent of the spring.
Reproductive State Fertile
Collector N. F. Synder
Collection Date Feb 1970
Accession Number 89140
Image 89140.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz
Locality USA. Florida , Collier Co. : Ca. 10 mi. E of Monroe Station along the road to Miami (US 41). 25° 19' 60" N 81° 0' 0" W
Description Abundant.
Habitat In water ca. 3 ft deep.
Reproductive State Fertile
Collector R. R. Haynes 4459
Collection Date 02 Jan 1975
Accession Number 152021
Image 152021.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 1975
Determination History
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: R. R. Haynes & A. Wentz, 1975
Locality USA. Florida , Collier Co. : S of Tamiami Trail, E of Monroe Station; Tamiami Canal. 25° 45' 31" N 80° 23' 54" W
Reproductive State Fertile
Collector O. K. Lakela 30655
Collection Date 04 Mar 1967
Accession Number 79689
Image 79689.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas guadalupensis (Spreng.) Magnus
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: Wunderlin, 1978
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: R. R. Haynes, 1980
Locality USA. Florida , Hillsborough Co. : Along upper reaches of the Little Manatee River. 27° 28' 60" N 82° 10' 60" W
Habitat Small backwater.
Reproductive State Fertile
Collector A.G. Shuey
Collection Date 03 May 1974
Accession Number 116030
Image 116030.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: Wunderlin, 1978
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: R. R. Haynes & A. Wentz, 1980
Locality USA. Florida , Hillsborough Co. : Upper reaches of the Little Manatee River in part of river between C-301 and the Seaboard Coastline railroad tracks. 27° 28' 60" N 82° 10' 60" W
Description Rare.
Habitat River.
Reproductive State Fertile
Collector A.G. Shuey
Collection Date 21 Dec 1974
Accession Number 116027
Image 116027.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: R. R. Haynes, 1980
Locality USA. Florida , Hillsborough Co. : Lake Park Front Lake.
Description Occasionally occuring submersed aquatic.
Reproductive State Fertile
Collector C. G. Wright 86
Collection Date 24 Aug 1978
Accession Number 135615
Image 135615.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz
Locality USA. Florida , Miami-Dade Co. : Ca. 3 mi. W of Tamiami Ranger Station along FL 94. 25° 45' 31" N 80° 23' 54" W
Description Abundant.
Habitat Water ca. 6 in. deep of stream.
Reproductive State Fertile
Collector R. R. Haynes 4432
Collection Date 31 Dec 1974
Accession Number 152019
Image 152019.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas flexilis (Willd.) Rostk. & W.L.E. Schmidt
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: Wunderlin, 1978
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: R. R. Haynes, 1980
Locality USA. Florida , Brevard Co. : N Merritt's Island. T21S, R36E, Sec. 19, NE¼.
Habitat Edge of limestone quarry in deep water along with cattails [Typha].
Reproductive State Fertile
Collector A.G. Shuey
Collection Date 11 Aug 1972
Accession Number 123783
Image 123783.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas flexilis (Willd.) Rostk. & W.L.E. Schmidt
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: R. R. Haynes & A. Wentz, 1974
Locality USA. Florida , Collier Co. : S of Corkscrew. 26° 28' 0" N 81° 32' 60" W
Habitat Formerly pine flatwoods, now extensively cleared for cultivation.
Reproductive State Fertile
Collector O. K. Lakela 31513
with F. Almeda
Collection Date 29 Jul 1968
Accession Number 84050
Image 84050.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: P. J. Simoes, Jan 2015
Determination History
Najas flexilis (Willd.) Rostk. & W.L.E. Schmidt
Najas guadalupensis (Spreng.) Magnus floridana R.R. Haynes & Wentz - Determined By: R. R. Haynes & A. Wentz, 1974
Locality USA. Florida , Miami-Dade Co. : Tamiami Canal and bank, E of junction with FL 94. 25° 45' 31" N 80° 23' 54" W
Habitat Canal and bank.
Reproductive State Fertile
Collector O. K. Lakela 30485
with F. Almeda
Collection Date 21 Dec 1966
Accession Number 78774
Image 78774.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Morong
Determination History
Najas guadalupensis (Spreng.) Magnus Floridana R.R. Haynes & Wentz - Determined By: R. R. Haynes & A. Wentz, 1974
Locality USA. Georgia , Burke Co. : 9.2 mi. S of Waynesboro.
Description Rooted but submerged.
Habitat In margin of old artificial pond.
Reproductive State
Collector W. H. Duncan 22236
Collection Date 10 Apr 1964
Accession Number 64286
Image 64286.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus
Locality USA. South Carolina , Orangeburg Co. : Chapel Branch, between Santee State Park and US 301/I-95 near Santee; Lake Marion.
Description Locally common.
Habitat In clear flowing water with Potamogeton diversifolius and Egeria densa.
Reproductive State
Collector C. A. Aulbach-Smith 3651
with R. Harvey, D.A. Rayner
Collection Date 30 May 1985
Accession Number 197535
Image 197535.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus
Locality USA. Tennessee , Jackson Co. : Along Big Bottom Road; about 4.5 mi. N of Gainsboro.
Habitat Shallow pond.
Reproductive State
Collector V. E. McNeilus
Collection Date 18 Aug 1992
Accession Number 207438
Image 207438.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus
Determination History
Najas guadalupensis (Spreng.) Magnus
Locality USA. Louisiana , St. Tammany Par. : Along Lake Pontchartrain and LA 1087, Mandeville. T9S, R11E, Sec. 48, 49, 50.
Reproductive State
Collector D. D. Taylor 5777
with B.E. Dutton
Collection Date 17 Sep 1983
Accession Number 217120
Image 217120.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus
Locality USA. Louisiana , Cameron Par. : Aquatic in western sectoe of Lacassine Pool, Lacassine National Wildlife Refuge. T12S, R6W, Sec. 36.
Reproductive State
Collector D. D. Taylor 4469
with R.D. Thomas, Aquatic Plants Class
Collection Date 05 Aug 1983
Accession Number 218420
Image 218420.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: R. R. Haynes & A. Wentz, 1974
Determination History
Najas flexilis (Willd.) Rostk. & W.L.E. Schmidt
Locality USA. North Carolina , Brunswick Co. : E of Orton Pond.
Habitat Swamp.
Reproductive State
Collector A. E. Radford
Collection Date 03 Jun 1950
Accession Number 44240
Image 44240.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Morong - Determined By: R. R. Haynes & A. Wentz, 1974
Determination History
Najas guadalupensis (Spreng.) Morong
Locality USA. North Carolina , Jones Co. : Near Trent River W of James City.
Habitat Brackish pool.
Reproductive State
Collector A. E. Radford 5717
Collection Date 27 May 1951
Accession Number 14677
Image 14677.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: R. R. Haynes & A. Wentz, 1974
Determination History
Najas guadalupensis (Spreng.) Magnus - Determined By: R. R. Haynes,
Locality USA. Louisiana , La Salle Par. : In bed of Old River, 1 mi. S of Whitehall.
Reproductive State
Collector R. D. Thomas 4592
Collection Date 23 Sep 1967
Accession Number 81650
Image 81650.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: R. R. Haynes, 1980
Determination History
Najas guadalupensis (Spreng.) Magnus
Locality USA. North Carolina , Columbus Co. : Lake Waccamaw.
Description Abundant.
Habitat Rooted submergent in 1 m. of tannin stained water.
Reproductive State
Collector L. J. Musselman
Collection Date 17 Oct 1974
Accession Number 118859
Image 118859.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus
Locality USA. Indiana , Monroe Co. : Off IN 446 on road to Cutright boat launch; ca. 9 mi. SE of downtown Bloomington; Lake Monroe. 39° 8' 9" N 86° 32' 0" W
Description Abundant.
Habitat In shallow water.
Reproductive State
Collector L. J. Davenport 2154
Collection Date 20 Aug 1981
Accession Number 182620
Image 182620.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus
Locality Venezuela. Aragua , San Sebastián Mun. : On highway 11 at Rio Guarico, 10 km E of San Juan de Los Morros (junction highway 2). 7° 39' 42" N 66° 19' 55" W
Description Abundant.
Habitat In shallow water at river's edge.
Reproductive State
Collector L. J. Davenport
Collection Date 08 Mar 1980
Accession Number 152043
Image 152043.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Najadaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus
Locality USA. Florida , Monroe Co. : Along N side of Loop Road (FL 94), at the concrete bridge ca. 4 mi. W of the junction with US 41.
Description Abundant, with a good number of seeds.
Habitat Water ca. 2-3 ft. deep.
Reproductive State Fertile
Collector R. E. Mossman
Collection Date 10 Feb 1974
Accession Number 298273
Image 298273.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus
Locality USA. Oklahoma , Pawnee Co. : Farm pond formed by construction of OK 15; 6.5 mi. W of junction with OK 18. T22N, R4E.
Habitat Dense patches with potamogeton nodosus, Zanichella palustris.
Reproductive State Fertile
Collector R. J. Tyrl
with C. McDonald
Collection Date 10 Nov 1972
Accession Number 192811
Image 192811.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus
Locality USA. Oklahoma , Washita Co. : 8 mi. S of Weatherford on US 69 and E 1 mi.; Lake Crowder. T11N, R14W, Sec. 29. 35° 31' 34" N 98° 42' 27" W
Habitat With P. pectinatus, P. nodosus, C. demersum, Chara.
Reproductive State Fertile
Collector R. W. Couch
with E. Nelson
Collection Date 27 Jul 1979
Accession Number 192767
Image 192767.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: S. R. Hill, Oct 1998
Locality USA. Illinois , Tazewell Co. : Washington; Caterpillar Inc. proving grounds and drainages; Washington quad. T26N, R3W, Sec. 9, NE¼, NW¼, Sec. 4, SW¼. 40° 42' 13" N 89° 24' 26" W
Description Abundant aquatic herb.
Habitat Artificial pond; with Potamogeton spp.; shallow water < 1m. Deep; Acer saccharum-Quercus rubra forest; glacial till.
Reproductive State Fertile
Collector S. R. Hill
Collection Date 08 Sep 1998
Accession Number 283598
Image 283598.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: S. R. Hill, Jul 1991
Locality USA. Texas , Goliad Co. : O'Connor River Ranch; Montgomery Bend of San Antonio River; N side TX 239; 7 mi. SE of TX-183; Goliad; Helsley Lake and Live Oak Lake Quad. 28° 40' 6" N 97° 23' 18" W
Description Abundant.
Habitat Shallow water; river pasture.
Reproductive State Fertile
Elevation 100 to 200 ft
Collector S. R. Hill
Collection Date 24 Jul 1991
Accession Number 203963
Image 203963.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Hydrocharitaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: R. R. Haynes, Oct 1997
Locality USA. Illinois , Tazewell Co. : Farm pond between Washington and E Peoria; Washington 7.5' quad. T26N, R3W, Sec. 21, SE¼, SE¼, SW¼. 40° 42' 13" N 89° 24' 26" W
Description Common.
Habitat Pond margin; with Nitella, Potamogeton spp., Najas, Zannichellia; shallow water 0.5-1 ft. deep; with Nitella; closer to shore than Potamogeton.
Reproductive State Fertile
Collector S. R. Hill
Collection Date 23 Jul 1997
Accession Number 240070
Image 240070.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Najadaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus
Locality USA. Florida , Levy Co. : Lower Suwannee National WIldlife Refuge, Fowlers Bluff. 29° 17' 12" N 83° 3' 18" W
Description Forming large flowing mass.
Habitat Tidal creek.
Reproductive State
Collector S. Dickman
with V. Giles
Collection Date 16 Oct 2021
Accession Number 303310
Image 303310.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Najadaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus
Locality USA. Florida , Levy Co. : Lower Suwannee National WIldlife Refuge, Fowlers Bluff. 29° 17' 12" N 83° 3' 18" W
Description Forming large flowing mass.
Habitat Tidal creek.
Reproductive State
Collector S. Dickman
with V. Giles
Collection Date 16 Oct 2021
Accession Number 303311
Image 303311.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Najadaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus
Locality USA. Florida , Hillsborough Co. : Lake Dan Nature Preserve, Odessa; adjacent to N shore of Lake Dan. 28° 10' 2" N 82° 38' 49" W
Description Many submerged plants.
Habitat Adjacent to lake shore.
Reproductive State
Collector S. Dickman
Collection Date 29 Aug 2016
Accession Number 303632
Image 303632.jpg
Plant Atlas Link Plant Atlas Citation

Najas guadalupensis
Family Name Najadaceae
Currently Accepted Name Najas guadalupensis (Spreng.) Magnus - Determined By: K. S. Alvarado, 2022
Locality USA. Florida , Sumter Co. : Pine Island.
Reproductive State
Collector C. F. Caudle
with M.L. Gilbert, M.S. Tisdale
Collection Date 08 Jun 1963
Accession Number 304559
Image 304559.jpg
Plant Atlas Link Plant Atlas Citation