where are the seeds located in a flowering kale plant?

Question

I WANT TO GROW MY OWN PLANTS BY TAKING SEEDLINGS from a kale plant

Answer 1

Has it flowered yet? The flowers are tiny yellow four petaled affairs held above the colorful foliage.
"Flowering Kale" refers to the colorful foliage which is not the same as the flowers. Flowers are rather common and come at end of season......as it starts to warm up.

Answer 2

Wait for the plant to mature and the whole flower area starts to turn brown. Clip off the head and put into a paper bag. Let it dry for days/weeks. Shake the head so the seeds fall into the bag, then plant the seeds.