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Montana Field Guide

Montana Field Guides

Flatstem Pondweed - Potamogeton zosteriformis


Global Rank: G5
State Rank: SNR

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 9

External Links






 
General Description
Stems flattened, winged, branched. Submersed leaves linear, 5–20 cm × 2–5 mm; stipules 15–30 mm long, not sheathing. Floating leaves absent. Spikes 15–25 mm long, continuous. Tepals green, 1–2 mm long. Fruits 3–5 mm long, keeled with a curved beak (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
AK to NL south to CA, UT, KS, NY (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 123

(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 water of lakes, ponds, sloughs; valleys to montane (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

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