Callitriche heterophylla Pursh
Family: Plantaginaceae
large water-starwort
[Callitriche anceps Fernald,  more...]
Etymology: Callitriche: from the Greek calos, "beautiful," and trichos, "hair," because of the beautiful stems
Plants: annual, submersed aquatic with tips of the shoots floating or forming mats in mud, less than 9" long; stems fine; roots shallow
Leaves: opposite, denser toward the tip of the stem, ribbon-like, pale green, smooth edges; when on the water surface, they form a rosette of spatulate leaves up to 1/4" wide
Flowers: 2-parted, minute, in the leaf axils
Fruits: nearly as long as wide capsule, round but sometimes slightly wider above the middle, with shallow grooves and no wingsfruit drawing
Habitat: quiet water; in muddy, sandy soil
Callitriche heterophylla image
Callitriche heterophylla image
Callitriche heterophylla image
Callitriche heterophylla image
Callitriche heterophylla image
Callitriche heterophylla image
from USDA Plants Website  
Callitriche heterophylla image
Callitriche heterophylla image
Callitriche heterophylla image
Callitriche heterophylla image
Callitriche heterophylla image
Callitriche heterophylla image
Callitriche heterophylla image
Callitriche heterophylla image
Callitriche heterophylla image
Callitriche heterophylla image
Callitriche heterophylla image
Callitriche heterophylla image
Callitriche heterophylla image