natural dyeing - plants that make green dye

Let's complete a list of plants that we can use to dye, wool, cloth, cotton, linen, and other textiles, the green yellow.  

No need to restrict to region or climate, we're looking for a master list of natural dyes.

So far, I've tried

Nettles

Rhubarb

and an iron bath with yellow dye plants like sorrel

i am curious how rhubarb worked? did you use stem or leaf?

leaf, but it's recommended we dye outside as some people react poorly to the acid in the leaf.  But all dyeing really wants to be done with good airflow.  

using a copper mordent many plants will yeild a green dye, and some lovely broken greens too.

I've had a good green from fennel tops, but so long ago that I've forgotten how I did it - alum/cream of tartar mordant for sure, maybe with either copper or iron as an afterbath.