Rhubarb Leaves

[gregorach]

If it looks kinda like rhubarb and likes the same habitat as ramsons, then it's possibly butterbur. The flower spikes are the give-away, and should still be visible.

 

[Melonfish]

aye thats the stuff!
alot of it in health stores i see? any uses then?

 

[calibanzwei]

Only when properly extracted:
http://en.wikipedia.org/wiki/Butterbur#Medicinal_uses