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Not Ploughman's Spikenard, which is Asteraceae, and has an involucre of bracts enclosing the composite flower.
..it was my first impression, but when I looked closer I realised it is not Inula conyza. Don't know what it is, though!
Leaf reminds me of Verbena (Vervain), but flower head not right. The flower-head has a look of Centaurium.
The plant also has the look of a Teucrium, but the flowers are not advanced enough. Thinking it 's an exotic/non-native.
...please explain the lack of stripey bracts in this plant? It's not much like other observations of Inula conyzae. I'm struggling with this one!
My original ID was very speculative, and I'm starting to have my doubts now! If only we could see it in flower...
Having seen another similar observation I suspect this could be Wild Marjoram (Origanum vulgare)
Nearer the mark I think, I have paused several times over the page with it on, but it doesn't show the buds, which in this instance are are showing a little pink colouration of the flower; shame the foliage wasn't checked for smell it would have helped.
Having spent the last few days puzzling over this, I'm now convinced that this is Origanum. I've photographed the plants in my garden from every angle to reproduce something pretty close to the photos shown here. I think people have been misled on the scale of the plant shown. Not totally sure it's the wild form, so just going for genus.
Lat/Lng: 53.0507, -1.7666
OS grid ref: SK157504