''Najas grossareolata'', called the Sri Lankan water nymph, is an

aquatic plant Aquatic plants are plants that have adapted to living in aquatic environments (saltwater or freshwater). They are also referred to as hydrophytes or macrophytes to distinguish them from algae and other microphytes. A macrophyte is a plant that ...

growing in fresh water ponds. It is a rare and little-known species known from

Sri Lanka Sri Lanka (, ; si, ශ්‍රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an ...

.Ludwig J. Triest. 1988. Mémoires de l'Académie Royale des Sciences d'Outre-Mer. Classe de Sciences Naturelles et Médicales 22: 103, ''Najas grossareolata ''

References

grossareolata Aquatic plants Flora of Sri Lanka Plants described in 1988 {{Monocot-stub