Bit if an unusual one for me, have two of these small plants growing in the nature reserve I look after but cant seem to pin down what it is. So it has a very thin stem that feels square so thinking mint/ dead nettle family. The leaves look more like gypsywort but that has different flowers. Closest I have found is cushion calamint but it only has a single flower cluster at the top of the stem and the flowers are not quite the same as stock images I have found. The other was wild basil but the leaves are completely wrong. I’ve also tried the botanicalkeys website but no luck as yet. Any thought?