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Callitriche Linnaeus. Water-starwort.

Key to Callitriche

A genus of 20-50 species, annual and perennial herbs of aquatic, wetland, and upland habitats, nearly cosmopolitan. This genus should be included in a greatly expanded Plantaginaceae.

Ref: APG IV (2016); Crow & Hellquist (2023); Erbar & Leins In Kadereit (2004); Fassett (1951); Lansdown (2009); Lansdown (2019) In Flora of North America Editorial Committee (2019); Prančl et al. (2020). Show full citations.

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Show species in Callitriche

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Hover over a shape, letter, icon, or arrow on the map for definition or see the legend. Data for arrows not developed for genera and families which may have species only occurring outside the flora area.

image of plant© Erik Danielson | Callitriche palustris source | Original Image ⭷
image of plant© John Gwaltney | Callitriche heterophylla var. heterophylla | Original Image ⭷
image of plant© Bruce Sorrie | Callitriche palustris | Original Image ⭷
image of plant© Paul Marcum | Callitriche terrestris source | Original Image ⭷

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See something wrong or missing on about Callitriche? Let us know here: (Please include your name and email if at all complicated so we can clarify if needed.) We greatly appreciate feedback, and will include updates from you in our next webapp update, which can take a few months.