Ceratophyllum submersum subsp. submersum
Island distribution (first record)
Othonoi
Ereikoussa
Mathraki
Corfu (Stephanides 1948 as C. submersum)
Paxos
Antipaxos
Lefkada
Meganisi
Kalamos
Kastos
Atokos
Ithaka
Echinades
Cephalonia (Phitos & Damboldt 1985 as C. submersum)
Zakynthos
Strofades
Annotation: The record of Ceratophyllum submersum for Corfu (Stephanides 1948: 189) dates back to Mazziari and needs to be verified. [2016-01-17]
Taxonomic references ("taxonyms")
linked to standard floras (PFB, FE, FE2, FH) and annotated checklists (AFE, VPG, AHF) giving direct reference to occurrences of plant taxa on the Ionian Islands:
| PFB: | Ceratophyllum submersum |
| FE: | Ceratophyllum submersum |
| FE2: | Ceratophyllum submersum subsp. submersum |
| AFE: | Ceratophyllum submersum subsp. submersum |
| FH: | Ceratophyllum submersum subsp. submersum |
| VPG: | Ceratophyllum submersum |
| AHF: | Ceratophyllum submersum |