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Montana Field Guide

Montana Field Guides

Slender Pondweed - Potamogeton pusillus
Other Names:  Potamogeton berchtoldii

Image Copyright and Usage Information
Native Species

Global Rank: G5
State Rank: SNR
C-value: 7


Agency Status
USFWS:
USFS:
BLM:


 

External Links

 
General Description
Stems terete, branched, often with globose glands at some nodes. Submersed leaves linear 1–6 cm × 1–2 mm; stipules 5–30 mm long, sheathing or not but quickly fraying. Floating leaves absent. Spikes 5–12 mm long, continuous or with distinct whorls of flowers. Tepals green, 1–1.5 mm long. Fruits 1–2 mm long, obscurely keeled with a short, curved beak (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range Range Descriptions

Native
 


Range Comments
Circumboreal south to most of U.S., Mexico and S. America (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 85

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat
Shallow to deep, fresh to saline water of ponds, lakes, marshes, slow streams; plains, valleys, montane (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
  • Literature Cited AboveLegend:   View Online Publication
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Culver, D.R. 1994. Floristic analysis of the Centennial Region, Montana. M.Sc. Thesis. Montana State University, Bozeman. 199 pp.
    • Garrett, P.A. 1983. Relationships between benthic communities, land use, chemical dynamics, and trophic state in Georgetown Lake. Ph.D. Dissertation. Bozeman, MT: Montana State University. 136 p.
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 p.
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Citation for data on this website:
Slender Pondweed — Potamogeton pusillus.  Montana Field Guide.  .  Retrieved on , from