Callitriche

In swampy areas and on the shores of glacial lakes there are cushions of Azorella crenata and rosettes of Hypochaeris sessiliflora while there are Callitriche nubigena and Ranunculus limoseloides under the water.

Santa Marta páramo 2008

Found here is the quite rare autumnal water starwort Callitriche hermaphroditica.

Ilulissat Icefjord, Denmark-Greenland 2008

Ranunculus biternatus and Callitriche antarctica grew in the few areas with running water.

Amsterdam and Saint-Paul Islands temperate grasslands 2007

_Callitriche_, for instance, -- and a new set of chemical operations commences at once, and it becomes unnecessary to change the water.

The Atlantic Monthly, Volume 08, No. 47, September, 1861 Various

Treviranus [198] says that the flowers of _Hippuris_ and _Callitriche_ are apt to be hermaphrodite in summer, but female only at a later period.

Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants Maxwell T. Masters

The water starworts (_Callitriche_), not uncommon in stagnant water, represent the family _Callitrichaceæ_, and the box (_Buxus_) is the type of the _Buxaceæ_.

Elements of Structural and Systematic Botany For High Schools and Elementary College Courses Douglas Houghton Campbell

_Callitriche_ is to be found floating on the surfaces of small ponds or pools.

St. Nicholas Magazine for Boys and Girls, Vol. 5, July 1878, No. 9 Various 1868

_Vallisneria spiralis_ (or tape-grass), _Callitriche verna_ (or water-starwort), and _Anacharis alsinastrum_ (or water-thyme)?

St. Nicholas Magazine for Boys and Girls, Vol. 5, July 1878, No. 9 Various 1868

[_Sparganium, Typha, Potamogeton, Callitriche, Utricularia, _ sedges and rushes.] grew in the water, but I found no shells; tadpoles, however, swarmed, which later in the season become large frogs.

Himalayan Journals — Complete 1864

Eleocharis palustris, Scirpus triqueter, _ and _Callitriche verna?

Himalayan Journals — Complete 1864