There are no significant taxonomic issues associated with this name.

European regional assessment: Least Concern (LC)
EU 27 regional assessment: Least Concern (LC)
 
This species is classed as Least Concern as it is widespread with stable populations and does not face any major threats in the majority of its range.

H. vulgaris occurs throughout most of Europe and Asia, east to the Russian Far East, North Africa, northern and western North America and southernmost South America.

H. vulgaris is widespread and abundant throughout most of its European range, apart from Croatia where it is classed as Endangered, Greece where it is Vulnerable, and Switzerland, where it is classed as Near Threatened.
In Greece, Hippuris vulgaris is known from a single locality, a marshy area called Lakka Tsoumani on Tymfi Mountain range in northwest Greece at an altitude of 1,800 m. The size of this only confirmed population in Greece is estimated between 1,000-1,500 individuals.

H. vulgaris typically occurs in permanent rivers, ponds and lakes that are usually more than 1 m deep and have fairly deep beds of soft sediment rich in organic matter. In Greece, it is found in shallow and warm water of 30 cm depth and an alkaline pH.

There are no known past, ongoing or future threats to this species in the majority of its range. At the only Greek location, grazing and trampling by sheep, horses and cows seems to affect the population.

There is a low level of horticultural trade for landscape planting and garden ponds, but this is unlikely to affect its conservation status.

There are no conservation measures in place or needed for the majority of its range.

In Greece, it is classed as Vulnerable (D2) and control of grazing is suggested as conservation measure (Sarika and Yannitsaros 2009).