Ceratophyllales

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Introduction References & Edit History Quick Facts & Related Topics

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Ceratophyllum submersum

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Plant seedlings emerging from rich fertile soil

Do Plants Feel Pain?

Flower bingo

Britannica’s Flower Bingo

Macro image of pollen-covered bee on purple crocus. (flowers, stamen, pollination, insects, nature)

5 Fast Facts About Flower Anatomy

Anemone coronaria, the poppy anemone, Spanish marigold, or windflower, is a species of flowering plant.

What’s the Difference Between Angiosperms and Gymnosperms?

Hemp (Cannabis sativa).

9 Mind-Altering Plants

Discover

Portrait of a mountain gorilla at a short distance. gorilla close up portrait.The mountain gorilla (Gorilla beringei beringei)

Falling Stars: 10 of the Most Famous Endangered Species

Drinking water is poured into a glass.

Water Fluoridation: Just the Facts

Amendments 1-10 to the Constitution of the United States constitute what is known as the Bill of Rights on an American flag.

What Is the Emoluments Clause?

US Marines firing at Fallujah, Iraq, during the Second Battle of Fallujah in November 2004. Operation Iraqi Freedom, Iraq War.

Timeline of the 2000s

Ethel Rosenberg arrested in August 1950. Photograph dated Aug. 8, 1950. American civilians executed for espionage. Spies, communists, Julius Rosenberg

Spies Like Us: 10 Famous Names in the Espionage Game

Periodical Cicada, Adult, Magicicada spp. Requires 17 years to complete development. Nymph splits its skin, and transforms into an adult. Feeds on sap of tree roots. Northern Illinois Brood. This brood is the largest emergence of cicadas anywhere

Why Do Some Cicadas Appear Only Every 17 Years?

Aurochs. Bos primigenius. Skeleton. Extinct animal. Skeleton of an Aurochs, an extinct wild ox.

6 Animals We Ate Into Extinction

Ceratophyllales: Facts & Related Content

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

Facts

Also Known As	hornwort order

Photos

Ceratophyllum submersum

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Topics

Ceratophyllaceae hornwort coontail aquatic plant angiosperm magnoliid clade Ranunculales Nymphaeales Proteales monocotyledon Trochodendrales Buxales Amborellales Chloranthales parasitic plant

Quiz

trees deciduous and coniferous. trees grow on a bank of a forest in springtime in Alberta, British Columbia, Canada. logging, forestry, wood, lumber, wilderness

All Things Green Quiz

Venus's-flytrap. Venus's-flytrap (Dionaea muscipula) one of the best known of the meat-eating plants. Carnivorous plant, Venus flytrap, Venus fly trap

Plants: From Cute to Carnivorous

Demystified

Plant seedlings emerging from rich fertile soil

Do Plants Feel Pain?