Ceratophyllum demersum | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Order: | Ceratophyllales |
Family: | Ceratophyllaceae |
Genus: | Ceratophyllum |
Species: | C. demersum
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Binomial name | |
Ceratophyllum demersum |
Ceratophyllum demersum, commonly known as hornwort (a common name shared with the unrelated Anthocerotophyta), rigid hornwort,[2] coontail, or coon's tail,[3] is a species of flowering plant in the genus Ceratophyllum. It is a submerged, free-floating aquatic plant, with a cosmopolitan distribution, native to all continents except Antarctica. It is a harmful weed introduced in New Zealand.[3] It is also a popular aquarium plant. Its genome has been sequenced to study angiosperm evolution.[4]