Species

Ceratophyllum demersum L.

Rigid Hornwort

Ceratophyllaceae

Taxonomy

Classification

Group: Spermatophytina (Spermatophytes)
Family: Ceratophyllaceae (Hornwort family)
Genus: Ceratophyllum (Hornwort)

Synonyms

Ceratophyllum demersum
Ceratophyllum demersum subsp. apiculatum

Related species

Ceratophyllum demersum L. - Rigid Hornwort
Ceratophyllum submersum L. - Soft Hornwort

Traits


    Submerged aquatic plant, monoecious. <span class="v1">perianth:</span> perigone, 6&#8211;16&#8209;leaved. <span class="v1">stamina:</span> 10&#8211;22. <span class="v1">ovary:</span> 1. <span class="v1">fruits:</span> nuts, <ba><b>with 2&#8211;4 longer prickles at th...

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Distribution

Distribution in Europe


Ceratophyllum demersum

Legend

The colours represent the floristic status of the species in the respective region. Green indicates native occurrences, light green naturalized occurrences. Adventive occurrences are represented by light yellow shades and plants that are cultivated (but rarely occur in the wild) are dark yellow. Grey colours are used, if the floristic status of species is unknown or uncertain.


Distribution in Germany

Ceratophyllum demersum

Legend

Natural, established occurences
Artificial occurences

The color intensity reflects the species' abundance

Data: Floristische Kartierung Deutschlands (Stand 2013), Bundesamt für Naturschutz (www.floraweb.de)

Ecology

Ceratophyllum demersum

Ceratophyllum demersum

Status

  • native

Habitat

  • waters, riparian vegetation, mudflat vegetation, reedbeds

  • in nutritious, alkaline, periodically wet habitats

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