Small plant (3-4cm. Bright blue flowers in clusters. Toothed, oval leaves.
No interactions present.
Paler lower petal.
Wild Flower Society member
This plant was common all over the grassland at uni of Bath when I was there over 25 years ago but not sure if it is tending to decrease now as I notice it around less at least over here in Milton Keynes.
After checking this out again here in MK I remembered the rather distinctive colour of the flowers of V. filiformis which your plant does not have.
Also V. filiformis tends to grow in large masses as its spread by being chopped up by the lawn mower blades whereas your plant looks like single separate plants which suggests V. persica (also the flower colour is right for that species).
A decreasing alien
Lat/Lng: 51.3, -2.4
OS grid ref: ST7664