This is a new genus to us, as Klasea bulgarica came to us as named as Serratula bulgarica. There are around 55 species of Klasea, typically thistle-like plants, from the Mediterranean, to India, north all the way to Siberia and the far east.
The numerous small flowers that make up the flowerheads of all Klasea species are outstandingly attractive to all manner of pollinating insects, especially butterflies and day-flying moths, honeybees, bumblebees and hoverflies.