six-stamen waterwort
Elatine hexandra (Lapierre) DC.

Elatine hexandra, known as six-stamen waterwort, is a species in the Elatinaceae family. It is found in Europe, including the Azores, Portugal, and surrounding regions. The plant grows in shallow water near lakes and pools. Due to habitat loss from drainage and water pollution, it is in decline and is protected in several countries.
Description
Elatine hexandra (Lapierre) DC. is a member of the Elatinaceae family and is native to parts of Europe, including the Azores, Portugal, and other regions. It typically inhabits shallow water near lakes and pools. The species is experiencing a decline due to drainage and water pollution, prompting legal protection in several countries. It was first described in 1815.
Other common names
six-stamened waterwortsix-stamen waterwortWaterwort
Distribution
Açores · Portugal Continental · Corvo Island · Faial Island · Flores Island · Graciosa Island · Pico Island · Santa Maria Island · São Miguel Island · Terceira Island · NO · Palaearctic · Flanders · SE · DK · Belgium · Flemish Region · Walloon Region · Austria · Azores · Corse · Czechoslovakia · Denmark · France · Germany · Great Britain · Hungary · Ireland · Italy · Netherlands
Synonyms
Potamopitys hexandraElatine paludosaElatine tripetalaHydropiper hexandrumElatine paludosa subsp. hexandraElatine hydropiper var. hexandraElatine hexandra var. pedunculataElatine hexandra subvar. pedunculataElatine paludosa var. hexandra