An annual or possibly perennial herb, which was discovered growing on clay in the dry bed of a turlough in Co. Galway in 1999. In Europe it is recorded from ephemeral water bodies, particularly lakes with marked water level fluctuations, temporary pools and rutted tracks, and is most frequent as a terrestrial form on wet mud. Lowland.
The occurrence of C. palustris in our areas has only recently been confirmed. All previous records have been refuted or remain unconfirmed. It was discovered in Dunbartonshire in 2000, after the close of recording for this Atlas.
Circumpolar Boreal-temperate element.
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Atlas text references
1986. Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
Lansdown & Bruinsma (2000)
1978. Vergleichende Chorologie der zentraleuropäischen Flora. Volume 2. 2 vols.
1967. Les Callitriches: espèces de France et taxa nouveaux d'Europe.