Ceratophyllum demersum

Coontail, a reference photo
Photo: Totodilefan · Public domain

Ceratophyllum demersum, commonly called hornwort or coontail, is a species of flowering plant in the genus Ceratophyllum. Ceratophyllum demersum 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. It is also a popular aquarium plant. Its genome has been sequenced to study angiosperm evolution.

From Wikipedia, under CC BY-SA 4.0.

Is it poisonous?

We have no record of Coontail being toxic, poisonous or venomous. That is not proof that it is safe. Never eat, touch or handle a wild plant, mushroom or animal on the strength of an identification; ask someone qualified.

Easily confused with

Classification

Kingdom
Plantae
Phylum
Tracheophyta
Class
Magnoliopsida
Order
Ceratophyllales
Family
Ceratophyllaceae
Species
Ceratophyllum demersum

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