Potamogeton pusillus L.
LESSER PONDWEED
Potamogeton friesii auct, non Rupr; Potamogeton panormitanus Biv; Potamogeton trichoides auct, non Cham & Schltdl; Small pondweed; Slender pondweed
Life   Plantae   Monocotyledoneae   Potamogetonaceae   Potamogeton

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Potamogeton pusillus
© Copyright Malcolm Storey 2011-2118 · 3
Potamogeton pusillus
Potamogeton pusillus
© Copyright Malcolm Storey 2011-2118 · 3
Potamogeton pusillus

Potamogeton pusillus
© Copyright Malcolm Storey 2011-2118 · 3
Potamogeton pusillus
Potamogeton pusillus
© Copyright Malcolm Storey 2011-2118 · 3
Potamogeton pusillus

Potamogeton pusillus
© Copyright Malcolm Storey 2011-2118 · 3
Potamogeton pusillus
Potamogeton pusillus
© Copyright Malcolm Storey 2011-2118 · 3
Potamogeton pusillus

Potamogeton pusillus
© Copyright Malcolm Storey 2011-2118 · 3
Potamogeton pusillus
Potamogeton pusillus
© Copyright Malcolm Storey 2011-2118 · 3
Potamogeton pusillus

Potamogeton pusillus
© Copyright Malcolm Storey 2011-2118 · 3
Potamogeton pusillus
Potamogeton pusillus
© Copyright Malcolm Storey 2011-2118 · 3
Potamogeton pusillus

Potamogeton pusillus
© Copyright Malcolm Storey 2011-2118 · 3
Potamogeton pusillus
Potamogeton pusillus, seed
© Copyright Seeds USID 2015 · 1
Potamogeton pusillus, seed

Potamogeton pusillus
© Copyright Malcolm Storey 2011-2118 · 1
Potamogeton pusillus
Potamogeton pusillus
© Copyright Malcolm Storey 2011-2118 · 1
Potamogeton pusillus
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Following modified from Flora of Taiwan, National Taiwan University
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&pull 20q v5.145 20180528: Error 404 Not Found http://tai2.ntu.edu.tw/udth/bin/fot1.exe/browse?bid=5&page=25

Following modified from Taiwan Biodiversity National Information Network
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Kingdom Plantae  
 Phylum Tracheophyta  
 Class Magnoliopsida  
 Order Alismatales  
 Family Potamogetonaceae  
 Genus Potamogeton  
  Potamogeton pusillus    L. 
Provider: Ching-I Peng 
hierarchy tree    download xml    download txt    Chinese Page    
Citation: Flora of Taiwan 2nd ed. 5: 25, 2000
Name Code: 201886
   Wang,2012:VU   Wang,2012:VU   
Suggested Link    Discover Life    Flora of Taiwan 2nd eBooks (National Taiwan University)  
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Following modified from Plants Database, United States Department of Agriculture
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http://plants.usda.gov/java/profile?symbol=POPU7 ---> https://plants.usda.gov/java/profile?symbol=POPU7
https://plants.usda.gov/java/profile?symbol=POPU7 ---> http://plants.usda.gov/core/profile?symbol=POPU7
http://plants.usda.gov/core/profile?symbol=POPU7 ---> https://plants.usda.gov/core/profile?symbol=POPU7
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Potamogeton pusillus L.
small pondweed

Image of Potamogeton pusillus

General Information
Symbol: POPU7
Group: Monocot
Family: Potamogetonaceae
Duration: Perennial
Growth Habit : Forb/herb
Native Status : AK   N
CAN   N
L48   N
SPM   N
Data Source and Documentation
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Plants-NRCS Logos
green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   

Images

click on a thumbnail to view an image, or see all the Potamogeton thumbnails at the Plants Gallery

Robert H. Mohlenbrock. USDA NRCS. 1992. Western wetland flora: Field office guide to plant species . West Region, Sacramento. Provided by USDA NRCS Wetland Science Institute (WSI). Usage Requirements .

Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 1: 84. Provided by Kentucky Native Plant Society . Scanned by Omnitek Inc . Usage Requirements .

slideshow

Synonyms

Classification

Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Liliopsida – Monocotyledons
Subclass Alismatidae
Order Najadales
Family Potamogetonaceae – Pondweed family
Genus Potamogeton L. – pondweed
Species Potamogeton pusillus L. – small pondweed

Subordinate Taxa

The Plants Database includes the following 3 subspecies of Potamogeton pusillus . Click below on a thumbnail map or name for subspecies profiles. Plant is native (blue) Native Plant is introduced Introduced Plant is introduced Native and Introduced Related taxa legend Distribution of <i>
Potamogeton pusillus</i>
L. ssp. <i>
gemmiparus</i>
(J.W. Robbins) Haynes & C.B. Hellquist
Potamogeton pusillus ssp. gemmiparus
small pondweed Distribution of <i>
Potamogeton pusillus</i>
L. ssp. <i>
pusillus </i>
Potamogeton pusillus ssp. pusillus
small pondweed Distribution of <i>
Potamogeton pusillus</i>
L. ssp. <i>
tenuissimus</i>
(Mert. & W.D.J. Koch) Haynes & C.B. Hellquist
Potamogeton pusillus ssp. tenuissimus
small pondweed

Legal Status

Threatened and Endangered Information:
This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete protected plant list for that location.
Indiana slender pondweed Rare

Wetland Status

Interpreting Wetland Status

North America
Alaska OBL
Arid West OBL
Atlantic and Gulf Coastal Plain OBL
Eastern Mountains and Piedmont OBL
Great Plains OBL
Midwest OBL
Northcentral & Northeast OBL
Western Mountains, Valleys, and Coast OBL

Related Links

More Accounts and Images
ARS Germplasm Resources Information Network (POPU7)
CalPhotos (POPU7)
Flora of North America (POPU7)
Integrated Taxonomic Information System (POPU7)
Jepson Interchange (University of California - Berkeley) (POPU7)
Lady Bird Johnson Wildflower Center Native Plant Information Network (POPU7)
USF Atlas of Florida Vascular Plants (POPU7)
University of Tennessee Herbarium (Distribution) (POPU7)
University of Wisconsin - Stevens Point Freckmann Herbarium (POPU7)

Wildlife

Food

Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Cover

Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover


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Following modified from Flora of North America
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FNA | Family List | FNA Vol. 22 | Potamogetonaceae | Potamogeton

16. Potamogeton pusillus Linnaeus, Sp. Pl. 1: 127. 1753 (as pusillum).

Rhizomes absent. Cauline stems terete to slightly compressed, without spots, 18--150 cm; glands present on at least some nodes, green, gold, brown, or rarely white, to 0.5 mm diam. Turions common, soft, lateral or terminal, 0.9--3.2 cm ´ 0.3--1.8 mm, soft; leaves ± 2-ranked; outer leaves 1--3 per side, base not corrugate, apex subulate to obtuse; inner leaves rolled into hardened fusiform structure. Leaves submersed, ± spirally arranged, sessile, delicate to coarse; stipules persistent, inconspicuous, connate or convolute, free from base of blade, brown to green or white, not ligulate, 0.31--0.92 cm, rarely appearing fibrous, not shredding at tip, apex obtuse; blade pale green to olive-green, rarely somewhat reddish, linear, not arcuate, 0.9--6.5 cm ´ 0.2--2.5 mm, base slightly tapering, without basal lobes, not clasping, margins entire, not crispate, apex not hoodlike, subulate to obtuse, lacunae absent or present, in 0--5 rows each side of midrib; veins 1--3(--5). Inflorescences unbranched, submersed or emersed; peduncles not dimorphic, axillary or terminal, erect, rarely recurved, filiform to slightly clavate, 0.5--6.2(--6.6) cm; spikes not dimorphic, capitate to cylindric, 1.5--10.1 mm. Fruits sessile, green to brown, ovoid to obovoid, turgid to concave, not abaxially or laterally keeled, 1.5--2.2 ´ 1.2--1.6 mm; beak erect, 0.1--0.6; sides without basal tubercles; embryo with less than 1 full spiral.

Subspecies 3 (3 in the flora): nearly worldwide.

Three hybrids, Potamogeton perfoliatus ´ P. pusillus (= P. ´ mysticus Morong), P. friesii ´ P. pusillus (= P. ´ pusilliformis Fisher [P. ´ intermedius Fischer]), and P. obtusifolius ´ P. pusillus (= P. ´ saxonicus Hagström), have been described.

Following modified from CalPhotos
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http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Potamogeton+pusillus&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant ---> https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Potamogeton+pusillus&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant

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Number of matches : 4
Query: SELECT * FROM img WHERE ready=1 and taxon like "Potamogeton pusillus%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Potamogeton pusillus
Potamogeton pusillus
Small Pondweed
ID: 6246 3041 2861 0080 [detail]
© 1995 Saint Mary's College of California

Potamogeton pusillus
Potamogeton pusillus
Small Pondweed
ID: 0000 0000 1207 0346 [detail]
© 2007 Neal Kramer

Potamogeton pusillus
Potamogeton pusillus
Small Pondweed
ID: 0000 0000 1207 0347 [detail]
© 2007 Neal Kramer

Potamogeton pusillus
Potamogeton pusillus
ID: 0000 0000 0113 2345 [detail]
© 2013 Jake Ruygt

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