Need help identifying perennial grass!

[gardenerintraining]

Hi Everyone,

We moved to a new house in the winter. The property has extensive perennial gardens, and I am working on identifying everything.

I am not sure about this perennial grass. It is in three locations, and hasn't seemed to change much since the spring. I am guessing that it might bloom in the fall.

Any ideas? Thanks for your help.

[kelly_m]

Not sure which one it is but it looks like a sedge...

[growitall]

It appears to be Phalaris arundinacea, one of the non-variegated forms. Watch it closely for invasiveness.