Robert W. Freckmann Herbarium


  Ceratophyllum echinatum A.Gray image
Photographer: Paul Skawinski           

Carol Watkins

Paul Skawinski

Paul Skawinski

Paul Skawinski
Family Ceratophyllaceae
Ceratophyllum echinatum A.Gray
prickly hornwort, spiny hornwort
Ceratophyllum: from the Greek keras, "a horn," and phyllon, "leaf," alluding to the stiff and narrow leaf divisions, this is a genus often called hornwort
echinatum: echinus for "sea-urchin, hedgehog;" hence "spiny"
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: perennial, submerged aquatic, evergreen; stems long, trailing; lacks true roots, may anchor in sediment by modified leaves
Flower: tiny, male and female flowers, in leaf axils, on separate plants
Fruit:dry seed with several spines and a rough surface
Leaf:whorled, stiff, 5-12 per node, forks 3-4 times, edges toothless but with some spines, whorls mostly evenly spaced on stem
Habitat: water to >7' deep
(Glossary)

More Information Natural Communities Herbarium Specimens
All Ceratophyllum list Google- Images or Text

Flora of North America (off site)
Synonyms 
Ceratophyllum demersum L. var. echinatum (A.Gray) A.Gray
Ceratophyllum submersum L. var. echinatum (A.Gray) Wilmot-Dear

         
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