Angiospermae - Alismatales - Hydrocharitaceae
Parent taxon: Alismatales according to The Angiosperm Phylogeny Group 2016
See also Benzecry and Brack-Hanes 2008, Chandler 1963, Chandler 1978, Knowlton 1919, Mabberley 2000 and Taylor et al. 2008
Sister taxa: Alismataceae, Aponogetonaceae, Butomaceae, Cymodoceaceae, Juncaginaceae, Maundiaceae, Pennipollis, Posidoniaceae, Potamogetonaceae, Ruppiaceae, Scheuchzeriaceae, Thalassocharis, Tofieldiaceae, Zannichelliaceae, Zosteraceae
Subtaxa: Elodea Enhalus Eotrapa Halophila Halophiloideae Hydrocharis Hydrocharites Ottelia Stratiotes Stratiotites Thalassia Thalassioideae Thalassites Thalassotaenia Vallisnerioideae
Ecology: "photoautotroph"
Distribution:
• Quaternary of the Bahamas (1 collection)
• Pliocene to Pleistocene of Italy (1)
• Pliocene of Germany (4), the Russian Federation (1), United States (1: Florida)
• Miocene to Pliocene of France (1)
• Miocene of Argentina (1), Germany (21), Poland (1), Portugal (1), the Russian Federation (14)
• Oligocene of Germany (7), the Russian Federation (3), the United Kingdom (1)
• Eocene of Germany (1), the United Kingdom (8), United States (2: Florida)
• Cretaceous to Paleogene of the Netherlands (1)
• Cretaceous of Belgium (5), the Netherlands (12)
Total: 87 collections including 98 occurrences