Euro+Mednot endemic: France, with Channel is. and Monaconative: reported in errorA (Francenative: reported in errorB,C)
Bibliography
A.Lansdown, R. V. 2006: Notes on the water-starworts (Callitriche) recorded in Europe. – Watsonia; journal of the botanical society of the British Isles 26: 105-120
B.Lansdown, R. 2008: Water Starworts: Callitriche of Europe. – BSBI
C.de Foucault, B. 2014: Flora Gallica Flore de France