Callitriche terrestris Raf.
Family: Plantaginaceae
terrestrial water-starwort
[Callitriche austinii Engelm.,  more...]
Callitriche terrestris image
from USDA Plants website  
Callitriche terrestris image
Bill Steury  
Etymology: Callitriche: from the Greek calos, "beautiful," and trichos, "hair," because of the beautiful stems
Plants: annual semi-aquatic
Conservation Status: Native
Callitriche terrestris image
Bill Steury