[1] Also known as pond water-starwort, C. stagnalis, may thrive in a variety of aquatic and subaquatic habitats, specially those exhibiting slowly moving to non-moving water.

[1] Submerged leaves of C. stagnalis are linear, appearing long and thin with one vein running up the center.

[1] Submerged leaves are typically thin but may be wider in some cases making it harder to differentiate them from their floating counterparts which may grow 5 to 8 mm in width.

[1] The ability of C. stagnalis to reproduce via clonal spread aids in this species invasiveness and subsequent threat to native vegetation.

[1] C. stagnalis frequents lakes, ponds, salt marshes, and slow moving rivers and streams.

[1][2] Callitriche stagnalis is native to both Europe and North Africa, where it is widespread in aquatic and subaquatic habitats.

[1] Currently C. stagnalis has been found in Europe, Northern Africa, The United States, Asia, Australia, New Caledonia, and New Zealand.