The rarest plant in the borough has reappeared for the first time since 2005.
Found flowering on the Esher Commons, the starfruit is very rare in the UK and is now endangered.
It is a plant of muddy pond margins, and the site on Esher Commons is one of only two sites the starfruit can be found flowering in the country.
A council spokesman said: "This is a great example of our commitment to nature conservation in Elmbridge.
"The countryside team working with conservation volunteer groups such as the Lower Mole Project have been actively managing these ponds for Starfruit with positive results for more than 20 years now and we are really pleased that we have continued to conserve this plant."
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