Aponogeton distachyos L.f., Suppl. Pl. 215 1782.;
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SW. Cape Prov.; Introduced into: California, France, Great Britain, New Zealand North, New Zealand South, Northern Provinces, Victoria as per POWO;
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SK 3490 17 May 2022: 4 very high res. images.

Location: Eden Project, Cornwall, UK
Altitude: 60m.
Date: 03 April 2022
Habit : Cultivated

The cute leaves in 1st pic do not belong to the flowers.
Aponogeton distachyos.. common name water hawthorn.
https://en.wikipedia.org/wiki/Aponogeton_distachyos

Aponogeton distachyos


 

 


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References:
POWO  Catalogue of Life  The Plant List Ver.1.1  WCSP  IPNI