Common Yarrow?

Description:

multiple plants growing in a small area. smell aromatic when crushed between fingers maybe slightly like coconut. I put 5 of these in a mug and poured on boiling water. Left for 5 minutes stirred in a little honey and some lemon juice. Tasted good, there've been no adverse effects after 6 hours that I'm aware of.

Notes:

cf no sample. Growing on the East side of this road, through the moss on top of the West facing wall in a place where the wall is relatively low.