Need help with identifying this plant

[EL GOLFO]

Plant3ed a single bog type plant last year,do not know what kind it is,it has taken over my above the pond bog barrel,would like to remove some and set up in another pond but not in a bog barrel.Is this possible?When it blooms,it sends up a shaft with white small flowers at the end.
If I can transplant some of these would any container do ,filled with gravel?,sand? or just plain dirt.
Thanks for any suggestions.

 

[Meyer Jordan]

Looks like a variety of Sagittaria. Yes it will transplant.

If I can transplant some of these would any container do ,filled with gravel?,sand? or just plain dirt.

Any one of the three mentioned.

 

[EL GOLFO]

Looks like a variety of Sagittaria. Yes it will transplant.


Any one of the three mentioned.

Thank you!!

 

[Usman]

can be Sagittaria lancifolia