Search Field Guide
Advanced Search
MT Gov Logo
Montana Field Guide

Montana Field Guides

White-stem Pondweed - Potamogeton praelongus

Native Species

Global Rank: G5
State Rank: SNR

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

External Links






 
General Description
Stems terete, little branched, somewhat zigzag. Submersed leaves sessile, clasping, lanceolate, minutely wavy, 6–20 × ca. 1 cm; stipules 2–7 cm long, not sheathing. Floating leaves absent. Spikes 2–4 cm long, continuous. Tepals green, 2–3 mm long. Fruits 4–5 mm long, keeled with an erect 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, CO, IN and NY (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 1044

(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

References
Login Logout
Citation for data on this website:
White-stem Pondweed — Potamogeton praelongus.  Montana Field Guide.  .  Retrieved on , from