WildBristol.uk - Discovering Wildlife in Bristol

Widespread and fairly frequent throughout the lowlands, being mainly situated in the South especially around the Bristol Region. Habitat includes: Any fresh water habitat such as ponds, lakes, rivers, canals etc. Flowers: July to September. ID: Looks very similar to Soft Hornwort but the difference is that Ridgid has leaves which fork 1 - 2 times, whereas Soft forks 3 - 4 times. 2 Varieties: Ceratophyllum demersum var. apiculatum, Ceratophyllum demersum var. inerme. Growing habit: Perennial.