Euro+Mednot endemic: France, with Channel is. and MonacocasualA,B,C; Spain, with Gibraltar and Andorra (SpaincasualD)
Bibliography
A.Lansdown, R. 2008: Water Starworts: Callitriche of Europe. – BSBI
B.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
C.de Foucault, B. 2014: Flora Gallica Flore de France
D.Lansdown, R. V., Bazos, I., Caria, M. C., Troìa, A. & Wieringa, J. J. 2017: New distribution and taxonomic information on Callitriche (Plantaginaceae) in the Mediterranean region. – Phytotaxa 313: 91-104