Scabiosa caucasia Development (page 7)

 Caprel growth and pollen attachment

After the pollen tube has fertilised the ovary development of the pericarp (fruit)  begins. The floret corollas wither and expose the pappuses and pappus bristles. The pappus bristles are attached directly to the structures that enclose the seed. The seed is green in colour and a bit larger than the eye of a needle.  Unfertilised fruits without a developed seed are much smaller in size.