I found this plant in the pre-Alps in Bavaria/Germany:
It was located between 900 and 1200m above sea level on a forest meadow in the beginning of July. It was a hot day (>25°C) but not sunny at that time on the meadow. Despite some efforts I can't seem to identify it. My best guess is that is is some sort of Centaurium, maybe Centaurium erythraea? Can you help?