Montana Field Guide

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Home - Other Field Guides
- Kingdom - Plants - Plantae
  - Division - Flowering Plants - Anthophyta
    - Class - Dicots - Dicotyledoneae
      - Order - Water-starworts / Mare's-tails - Callitrichales
        
        Family - Water-starworts - Callitrichaceae
        
        Species - Large Water-starwort - Callitriche heterophylla

Large Water-starwort - Callitriche heterophylla

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Native Species

Global Rank: G5
State Rank: SNR
C-value: 6

Agency Status
USFWS:
USFS:
BLM:

External Links

General Description

Plants submerged below, floating above. Stems 2–25 cm. Leaves joined together around the stem; submerged leaves linear, 3–15 mm long; floating leaves oblong, 2–5 mm wide. Flowers usually 1 male and 1 female per bracteate axil. Fruit oblong, ca. 1 mm wide and long, not winged (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments

Across most of northern U.S. and adjacent Canada (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database

Number of Observations: 34

(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 water of ponds, lakes at all elevations (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).)

Stewardship Responsibility

References

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.
Additional ReferencesLegend: View Online Publication
Do you know of a citation we're missing?
- Lesica, P., M.T. Lavin, and P.F. Stickney. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 p.
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Citation for data on this website:
Large Water-starwort — Callitriche heterophylla. Montana Field Guide. Montana Natural Heritage Program. Retrieved on November 21, 2024, from https://FieldGuide.mt.gov/speciesDetail.aspx?elcode=PDCLL01040