Host an Event Volunteer Join Tickets

Support the plant database you love!


Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

Enter a Plant Name:
Or you can choose a plant family:

Callitriche heterophylla ssp. heterophylla

Callitriche heterophylla Pursh ssp. heterophylla

Two-headed Water-starwort, Varied-leaved Water-starwort, Diverse-leaved Water-starwort

Callitrichaceae (Water-Starwort Family)

Synonym(s): Callitriche anceps, Callitriche heterophylla var. heterophylla


USDA Native Status: L48 (N), AK (N), CAN (N), GL (N)


From the Image Gallery

No images of this plant

Plant Characteristics

Duration: Annual
Habit: Herb
Leaf Arrangement: Opposite
Leaf Complexity: Simple
Leaf Shape: Linear
Breeding System: Flowers Unisexual , Monoecious
Inflorescence: Axillary
Fruit Type: Schizocarp
Size Notes: Stems creeping or floating, with rosettes floating on the surface of the water.

Bloom Information

Bloom Color: White
Bloom Time: Feb , Mar , Apr , May , Jun , Jul , Aug , Sep , Oct , Nov


USA: AK , AL , AR , AZ , CA , CO , CT , DC , DE , FL , GA , IA , ID , IL , IN , KS , KY , LA , MA , MD , ME , MI , MN , MO , MS , MT , NC , NE , NH , NJ , NM , NV , NY , OH , OK , OR , PA , RI , SC , SD , TN , TX , UT , VA , VT , WA , WI , WV , WY
Canada: NB , NL , NS
Native Habitat: Fresh water aquatic, wetlands, riparian, slow moving water.

Growing Conditions

Aquatic: yes

Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Callitriche heterophylla ssp. heterophylla in USDA Plants
FNA: Find Callitriche heterophylla ssp. heterophylla in the Flora of North America (if available)
Google: Search Google for Callitriche heterophylla ssp. heterophylla


Record Modified: 2023-01-26
Research By: TWC Staff

Go back