wˌɛn ðeɪ ɑːɹ pˈɑːlᵻnˌeɪɾᵻd, ðə ɡɹˈiːn pˈɪstɪlz ɪnðə mˈɪdəl ʌvðə flˈaʊɚ bɪkˌʌm ɐ ɹˈaʊndᵻd tə slˈaɪtli lˈɛŋθənd sˈiːd hˈɛd.
When they are pollinated, the green pistils in the middle of the flower become a rounded to slightly lengthened seed head.