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Montana Field Guide

Montana Field Guides

Pond Water-starwort - Callitriche stagnalis
Other Names:  Common Water-starwort

Non-native Species

Global Rank: GNR
State Rank: SNA
C-value: 1

Agency Status


External Links

General Description
Plants submerged to terrestrial. Stems 3–15 cm. Leaves joined together around the stem, linear to oblong, 5–10 mm long. Flowers usually 1 male and 1 female per bracteate axil. Fruit nearly round in outline, ca. 1.5 mm long with a conspicuous, whitish, wing-margin around the entire circumference (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
Eastern and northwest North America, Europe. This species may be introduced in Missoula and Ravalli counties (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 16

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Relative Density



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



  • 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.
  • Web Search Engines for Articles on "Pond Water-starwort"
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Citation for data on this website:
Pond Water-starwort — Callitriche stagnalis.  Montana Field Guide.  .  Retrieved on , from