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Ceratophyllum muricatum ssp. australe

Ceratophyllum muricatum Cham. ssp. australe (Griseb.) D.H. Les

Prickly Hornwort

Ceratophyllaceae (Hornwort Family)

Synonym(s): Ceratophyllum australe, Ceratophyllum cristatum, Ceratophyllum demersum var. cristatum, Ceratophyllum floridanum, Ceratophyllum llerenae, Ceratophyllum submersum ssp. muricatum


USDA Native Status: L48 (N)


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Plant Characteristics

Duration: Perennial
Habit: Herb
Size Notes: Stems up to about 3 feet long.

Bloom Information

Bloom Color: Green
Bloom Time: Mar , Apr , May
Bloom Notes: Flowers inconspicuous.


Native Habitat: Submersed or floating in fresh water ponds and lakes, often in stagnant water.

Web Reference

Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Ceratophyllum muricatum ssp. australe in USDA Plants
FNA: Find Ceratophyllum muricatum ssp. australe in the Flora of North America (if available)
Google: Search Google for Ceratophyllum muricatum ssp. australe


Record Modified: 2020-02-03
Research By: CBR

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