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Montana Field Guide

Montana Field Guides

Longleaf Pondweed - Potamogeton nodosus


Global Rank: G5
State Rank: SNR

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 6

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General Description
Stems terete, little branched. Submersed leaves petiolate; blades lanceolate, 10–20 cm × 8–20 mm; stipules 2–12 cm long, not sheathing, deciduous. Floating leaves long-petiolate; blades narrowly elliptic, 5–12 cm long. Spikes stout, 3–6 cm long, continuous. Tepals green, 1–3 mm long. Fruits 3–4 mm long, rounded on back with a short beak (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

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

Summary of Observations Submitted for Montana
Number of Observations: 8

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Relative Density

Recency

 

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



Habitat

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