Zannichellia palustris subsp. major explained

Zannichellia palustris subsp. major, the greater horned pondweed is an aquatic plant found in fresh to brackish waters in Europe.^{[1] [2]}

Notes and References

1. Talavera et al. (1986) Lagascalia 14: 3241-271.
2. Web site: Mifsud . Stephen . 2002-08-23 . Zannichellia major (Greater Horned Pondweed) : MaltaWildPlants.com - the online Flora of the Maltese Islands . 2021-12-27 . www.maltawildplants.com . en-us.