Horsetails for ID if possible please

[Johnny81]

All taken in Northamptonshire. I have not really looked into these much and don't know how easy or difficult it is to id these from pictures but here goes..

1. Forming extensive colonies across a stream. Maybe great horsetail? On average these were about waist height.



2. I think this a marestail, can anyone confirm? Growing in a pond/ditch.

[Johnny Redgate]

Both correct I think.

[King Edward]

Yes, I agree. Possibly unnecessary to point this out, but Mare's-tail is a flowering plant, completely unrelated to the horsetails which are related to ferns.

[Johnny81]

Thanks for the replies. I see mare's-tail is in the Hippuridaceae family, interesting.