I have been looking at Yarrow and Tansy, palps clear of face fur when I look through a glass as per Yarrow but leg striped between spurs (although not a clear cut change) as per Tansy.
Its wl is 10mm. so a bit small for those.
I then considered Crescent Plume. Plenty of Restharrow in bloom where I found it.
Sorry poor pic. I still have it as it was already without one hind leg so maybe get a better pic tomorrow unless some one tells me which it is on this evidence.