hornwort
Ceratophyllum echinatum A.Gray
Ceratophyllum echinatum, known as prickly hornwort, spiny hornwort, or spiny coontail, is an aquatic perennial plant native to North America. It is the only species in its genus endemic to the continent. The plant is characterized by fruits with a warty surface and long spines. It is commonly found in ponds and lakes, particularly in eastern North America.
Description
Ceratophyllum echinatum belongs to the family Ceratophyllaceae and is part of the genus Ceratophyllum. It is distributed across several regions in North America, including British Columbia, Manitoba, New Brunswick, Nova Scotia, Ontario, Quebec, Vermont-US, Alabama, Arkansas, Connecticut, Delaware, District of Columbia, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, and more. The species was first described in 1848 by A. Gray. It is known by the common name hornwort and is adapted to aquatic environments.
Other common names
Prickly CoontailPrickly HornwortSpineless HornwortSpiny HornwortSpring Hornworthornwort
Distribution
British Columbia · Manitoba · New Brunswick · Nova Scotia · Ontario · Quebec · Vermont-US · Alabama · Arkansas · Connecticut · Delaware · District of Columbia · Florida · Georgia · Illinois · Indiana · Iowa · Kansas · Kentucky · Louisiana · Maine · Maryland · Massachusetts · Michigan · Minnesota · Mississippi · Missouri · New Hampshire · New Jersey · New York
Synonyms
Ceratophyllum demersum var. echinatumCeratophyllum submersum var. echinatumFassettia echinata
