Greater knapweed (
Centaurea scabiosa) can survive in dry places. Its purple flowers contrast with the yellow grass.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBe3FORUBDiyjyQ8lLv3IEoH69QL1CbD-EEkM4gkNdS7uVGou315KL8PbrPKkiDzDySkYBqqVYfH0oQIehfpSr9lB3enuEtFG9EBGcCThewDgye8Ekj6MWnTXW-kxVyjkETfVjjR69H-ZM/s1600/centaurea+scabiosa-119077al-600-8ss.jpg)
Like with other members of the Daisy family (the Compositaea), what looks like a flower is in fact a flower head which contains several individual florets. Those are surrounded by a number of bracts which form an involucre. Here below those are visible as brown-edged scales under the flower head.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgRdEsxAhyphenhyphen8jz3ZUQh_iuCsdfKSLloMipZg1OIEKnwAwg-h_ObxKduAlrM9c83DvNOpvbgBkyl83PzuKfkoZ2LELfjUaOwTNAtkfIQRK5b4XZh5O1cu-cXedacyAJpcHnYxBeHCB5QW2spK/s1600/centaurea+scabiosa-119091a-l-600-8s.jpg)
In Greater Knapweed all florets are tubular, those on the outside are somewhat larger. The ants enjoy!