A third photo from Joanna and I'm especially indebted to her for this one, on two counts. One, because the plant, Centaurea ragusina is a new one to me, and two, because it appears to fall into the category of rare and endangered plants that I wrote an article about for the Jan 2015 MGS magazine (79). The very survival of some of these rare plants that are so endangered in the wild is being made possible because dedicated gardeners are growing and protecting them 'in captivity' as it were.
This plant it seems is a Croatian endemic that is included in that country's Red Data Book of Endangered Plants.
So, a double thank you, Joanna, for sharing this plant.