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Montana Field Guide

Montana Field Guides

Sago Pondweed - Potamogeton pectinatus
Other Names:  Stuckenia pectinata


Global Rank: G5
State Rank: SNR

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 5

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General Description
Plants tuberous. Stems terete, branched. Submersed leaves filiform,, 1–10 cm × <1 mm, tapering at the tip for >3 mm, attached to the stipule; lower stipules 16–30 mm long, sheathing. Floating leaves absent. Spikes 1–5 cm long with distinct whorls of flowers. Tepals brownish-green, 1–1.5 mm long. Fruits 3–4 mm long, obscurely keeled with a slender, curved beak (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
Circumboreal south to Mexico (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 1218

(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, often saline or alkaline water of ponds, lakes, streams, ditches; plains, valleys, montane (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Sago Pondweed — Potamogeton pectinatus.  Montana Field Guide.  .  Retrieved on , from