Pond Boss Forums AQUATIC VEGETATION Identifying plants Unidentified broad leaf pondweed

I have a pond weed that I have not been able to identify and it is not shown on the TAMU site. It was probably brought by ducks or geese last year and I thought it was a common pond weed but the flowering structure looks nothing like any I have seen. The stems are thick and the leaves 5-7” long I have included two pictures, one of the plant in the water and one of a detached leaf and flowering structure, which I picked to keep it from going to seed. There is a single leaf per stem with no branching. The pond is in NY. Any idea what this is?

Did you look at Water Plantain?

esshup, thanks. I only have a few years in the pond world and wasn't aware of water plantains. Do you consider them desirable or can they be noxious or invasive? Thanks for addressing my lack of knowledge in this area.

https://aquaplant.tamu.edu/plant-identification/alphabetical-index/american-water-plantain/

Any marginal plants in a pond are better than none. They aren't noxious or invasive.

Thanks again for the info.
I had not come across Alisma subcordatum Raf. or Alisma triviale Pursh since they are not well distributed in upstate NY (less than 15% of the counties) and not listed for my county by the New York Floral Atlas, nor for the counties with lakes we have visited most. These are not growing in their normal habitat on the perimeter but are on an island almost 2' deep and appeared last year as small floating leaves, much like American pondweed, but they were basal not having branched stems.
Thanks again.

Retired on 40 -- send you a private message. Did you receive it?