Looks like a hazel nut but I think these are the seeds?

[Angus 1895]

We came along these bushes near by a stream. The plant looks a lot like hazel nut, but these are what it had instead of nuts, what is it please.
Thanks

 

[Jerry-B-WI]

Possibly a hops hornbeam?

 

[gurgalunas]

Alder?

 

[homerj]

^^^ yup, tag alder

 

[Telemark]

It's a great tree to have. The wood is excellent for smoking fish.