Species

Ceratophyllum demersum L.

Synonyms:

Ceratophyllum oxyacanthum,

Ceratophyllum vulgare

Common names:

räni-kardhein,

kardhein

Viridiplantae ❯Viridiplantae sbk Incertae sedis ❯Anthophyta ❯Anthophyta sbp Incertae sedis ❯Eudicotyledonae ❯Ceratophyllales ❯Ceratophyllaceae ❯Ceratophyllum ❯Ceratophyllum demersum

Regional IUCN Red List category: Least Concern.

Search In PlutoF GBIF Catalogue of Life

Occurrences

Total records	432 ( 243 observations, 188 specimens, 1 refbased )
Total species	1
Records in Estonia	384 ( 243 observations, 140 specimens, 1 refbased )
Species in Estonia	1
First occurrence in Estonia	1844-01-01
Latest occurrence in Estonia	2026-08-27
First occurrence in Estonia this year	2026-06-06

Species lists

Estonian species,

Red List species in Estonia,

Red list: Least Concern

Accepted name

Ceratophyllum demersum L.

Synonyms

Ceratophyllum oxyacanthum Cham. ,

Ceratophyllum vulgare Schleid.

Common names

Iegrimusī raglape Latvian,

räni-kardhein Estonian,

kardhein Estonian,

hornblad Norwegian Bokmål,

hornblad Norwegian Nynorsk

PlutoF id