Photo: Rhaponticum cynaroides 0.
Botanical name:
Flowerheads, all flowered out. Kew Garden, London, UK. Planted. 2005-09-12.
Rhaponticum cynaroides (DC.) Less.
Bot. syn.: Centaurea cynaroides Link, Cnicus centauroides L., Leuzea centauroides (L.) Holub., Rhaponticum centauroides (L.) O.Bolos non G. Don, Serratula cynaroides DC., Stemmacantha centauroides (L.) Dittrich